{
  "elements": [
    {
      "AtomicNumber": 1,
      "Symbol": "H",
      "EnglishName": "Hydrogen",
      "Group": 1,
      "Period": 1,
      "Block": "s",
      "Category": 0,
      "AtomicMass": 1.008,
      "Configuration": "1s1",
      "ShellConfiguration": "1,,,,,,",
      "StandardState": 0,
      "Density": 0.00008988,
      "MeltingPoint": 14.01,
      "BoilingPoint": 20.28,
      "HeatCapacity": 14.304,
      "HeatOfFusion": 0.117,
      "HeatOfVaporization": 0.904,
      "AtomicRadius": 53,
      "CovalentRadius": 38,
      "VanDerWaalsRadius": 120,
      "Electronegativity": 2.2,
      "OxidationStates": 1,
      "IonizationEnergy": 1312,
      "ThermalConductivity": 0.1805,
      "ElectronAffinity": 72.769,
      "AbundanceCrust": 1400,
      "AbundanceUniverse": 75,
      "Discovery": 1766,
      "Radioactive": 0,
      "DiscoveredBy": "H. Cavendish"
    },
    {
      "AtomicNumber": 2,
      "Symbol": "He",
      "EnglishName": "Helium",
      "Group": 18,
      "Period": 1,
      "Block": "s",
      "Category": 7,
      "AtomicMass": 4.002602,
      "Configuration": "1s2",
      "ShellConfiguration": "2,,,,,,",
      "StandardState": 0,
      "Density": 0.0001785,
      "MeltingPoint": "",
      "BoilingPoint": 4.22,
      "HeatCapacity": 5.193,
      "HeatOfFusion": 0.0138,
      "HeatOfVaporization": 0.0829,
      "AtomicRadius": 31,
      "CovalentRadius": 32,
      "VanDerWaalsRadius": 140,
      "Electronegativity": "",
      "OxidationStates": 0,
      "IonizationEnergy": 2372.3,
      "ThermalConductivity": 0.1513,
      "ElectronAffinity": -50,
      "AbundanceCrust": 0.008,
      "AbundanceUniverse": 23,
      "Discovery": 1868,
      "Radioactive": 0,
      "DiscoveredBy": "P. Janssen, N. Lockyer"
    },
    {
      "AtomicNumber": 3,
      "Symbol": "Li",
      "EnglishName": "Lithium",
      "Group": 1,
      "Period": 2,
      "Block": "s",
      "Category": 1,
      "AtomicMass": 6.94,
      "Configuration": "[He] 2s1",
      "ShellConfiguration": "2,1,,,,,",
      "StandardState": 2,
      "Density": 0.534,
      "MeltingPoint": 453.69,
      "BoilingPoint": 1560,
      "HeatCapacity": 3.582,
      "HeatOfFusion": 3,
      "HeatOfVaporization": 136,
      "AtomicRadius": 167,
      "CovalentRadius": 134,
      "VanDerWaalsRadius": 182,
      "Electronegativity": 0.98,
      "OxidationStates": 1,
      "IonizationEnergy": 520.2,
      "ThermalConductivity": 84.8,
      "ElectronAffinity": 59.632,
      "AbundanceCrust": 20,
      "AbundanceUniverse": 6e-7,
      "Discovery": 1817,
      "Radioactive": 0,
      "DiscoveredBy": "A. Arfwedson"
    },
    {
      "AtomicNumber": 4,
      "Symbol": "Be",
      "EnglishName": "Beryllium",
      "Group": 2,
      "Period": 2,
      "Block": "s",
      "Category": 2,
      "AtomicMass": 9.0121831,
      "Configuration": "[He] 2s2",
      "ShellConfiguration": "2,2,,,,,",
      "StandardState": 2,
      "Density": 1.85,
      "MeltingPoint": 1560,
      "BoilingPoint": 2742,
      "HeatCapacity": 1.825,
      "HeatOfFusion": 7.895,
      "HeatOfVaporization": 292,
      "AtomicRadius": 112,
      "CovalentRadius": 90,
      "VanDerWaalsRadius": 153,
      "Electronegativity": 1.57,
      "OxidationStates": 2,
      "IonizationEnergy": 899.5,
      "ThermalConductivity": 200,
      "ElectronAffinity": -50,
      "AbundanceCrust": 2.8,
      "AbundanceUniverse": 1e-7,
      "Discovery": 1798,
      "Radioactive": 0,
      "DiscoveredBy": "N. Vauquelin"
    },
    {
      "AtomicNumber": 5,
      "Symbol": "B",
      "EnglishName": "Boron",
      "Group": 13,
      "Period": 2,
      "Block": "p",
      "Category": 5,
      "AtomicMass": 10.81,
      "Configuration": "[He] 2s2 2p1",
      "ShellConfiguration": "2,3,,,,,",
      "StandardState": 2,
      "Density": 2.34,
      "MeltingPoint": 2349,
      "BoilingPoint": 4200,
      "HeatCapacity": 1.026,
      "HeatOfFusion": 50.2,
      "HeatOfVaporization": 508,
      "AtomicRadius": 87,
      "CovalentRadius": 82,
      "VanDerWaalsRadius": 192,
      "Electronegativity": 2.04,
      "OxidationStates": 3,
      "IonizationEnergy": 800.6,
      "ThermalConductivity": 27.4,
      "ElectronAffinity": 26.989,
      "AbundanceCrust": 10,
      "AbundanceUniverse": 1e-7,
      "Discovery": 1808,
      "Radioactive": 0,
      "DiscoveredBy": "L. Gay-Lussac, L.J. Thénard"
    },
    {
      "AtomicNumber": 6,
      "Symbol": "C",
      "EnglishName": "Carbon",
      "Group": 14,
      "Period": 2,
      "Block": "p",
      "Category": 0,
      "AtomicMass": 12.011,
      "Configuration": "[He] 2s2 2p2",
      "ShellConfiguration": "2,4,,,,,",
      "StandardState": 2,
      "Density": 2.267,
      "MeltingPoint": 3800,
      "BoilingPoint": 4300,
      "HeatCapacity": 0.709,
      "HeatOfFusion": 117,
      "HeatOfVaporization": "",
      "AtomicRadius": 67,
      "CovalentRadius": 77,
      "VanDerWaalsRadius": 170,
      "Electronegativity": 2.55,
      "OxidationStates": "-4,-3,-2,-1,0,1,2,3,4",
      "IonizationEnergy": 1086.5,
      "ThermalConductivity": 140,
      "ElectronAffinity": 121.776,
      "AbundanceCrust": 200,
      "AbundanceUniverse": 0.5,
      "Discovery": -3750,
      "Radioactive": 0,
      "DiscoveredBy": ""
    },
    {
      "AtomicNumber": 7,
      "Symbol": "N",
      "EnglishName": "Nitrogen",
      "Group": 15,
      "Period": 2,
      "Block": "p",
      "Category": 0,
      "AtomicMass": 14.007,
      "Configuration": "[He] 2s2 2p3",
      "ShellConfiguration": "2,5,,,,,",
      "StandardState": 0,
      "Density": 0.0012506,
      "MeltingPoint": 63.15,
      "BoilingPoint": 77.36,
      "HeatCapacity": 1.04,
      "HeatOfFusion": 0.72,
      "HeatOfVaporization": 5.57,
      "AtomicRadius": 56,
      "CovalentRadius": 75,
      "VanDerWaalsRadius": 155,
      "Electronegativity": 3.04,
      "OxidationStates": "-3,2,3,4,5",
      "IonizationEnergy": 1402.3,
      "ThermalConductivity": 0.02583,
      "ElectronAffinity": -0.07,
      "AbundanceCrust": 19,
      "AbundanceUniverse": 0.1,
      "Discovery": 1772,
      "Radioactive": 0,
      "DiscoveredBy": "D. Rutherford"
    },
    {
      "AtomicNumber": 8,
      "Symbol": "O",
      "EnglishName": "Oxygen",
      "Group": 16,
      "Period": 2,
      "Block": "p",
      "Category": 0,
      "AtomicMass": 15.999,
      "Configuration": "[He] 2s2 2p4",
      "ShellConfiguration": "2,6,,,,,",
      "StandardState": 0,
      "Density": 0.001429,
      "MeltingPoint": 54.36,
      "BoilingPoint": 90.2,
      "HeatCapacity": 0.918,
      "HeatOfFusion": 0.444,
      "HeatOfVaporization": 6.82,
      "AtomicRadius": 48,
      "CovalentRadius": 73,
      "VanDerWaalsRadius": 152,
      "Electronegativity": 3.44,
      "OxidationStates": -2,
      "IonizationEnergy": 1313.9,
      "ThermalConductivity": 0.02658,
      "ElectronAffinity": 140.976,
      "AbundanceCrust": 461000,
      "AbundanceUniverse": 1,
      "Discovery": 1771,
      "Radioactive": 0,
      "DiscoveredBy": "W. Scheele"
    },
    {
      "AtomicNumber": 9,
      "Symbol": "F",
      "EnglishName": "Fluorine",
      "Group": 17,
      "Period": 2,
      "Block": "p",
      "Category": 6,
      "AtomicMass": 18.99840316,
      "Configuration": "[He] 2s2 2p5",
      "ShellConfiguration": "2,7,,,,,",
      "StandardState": 0,
      "Density": 0.001696,
      "MeltingPoint": 53.53,
      "BoilingPoint": 85.03,
      "HeatCapacity": 0.824,
      "HeatOfFusion": 0.51,
      "HeatOfVaporization": 6.62,
      "AtomicRadius": 42,
      "CovalentRadius": 71,
      "VanDerWaalsRadius": 147,
      "Electronegativity": 3.98,
      "OxidationStates": -1,
      "IonizationEnergy": 1681,
      "ThermalConductivity": 0.0277,
      "ElectronAffinity": 328.164,
      "AbundanceCrust": 585,
      "AbundanceUniverse": 0.00004,
      "Discovery": 1810,
      "Radioactive": 0,
      "DiscoveredBy": "A.-M. Ampère"
    },
    {
      "AtomicNumber": 10,
      "Symbol": "Ne",
      "EnglishName": "Neon",
      "Group": 18,
      "Period": 2,
      "Block": "p",
      "Category": 7,
      "AtomicMass": 20.1797,
      "Configuration": "[He] 2s2 2p6",
      "ShellConfiguration": "2,8,,,,,",
      "StandardState": 0,
      "Density": 0.0008999,
      "MeltingPoint": 24.56,
      "BoilingPoint": 27.07,
      "HeatCapacity": 1.03,
      "HeatOfFusion": 0.335,
      "HeatOfVaporization": 1.71,
      "AtomicRadius": 38,
      "CovalentRadius": 69,
      "VanDerWaalsRadius": 154,
      "Electronegativity": "",
      "OxidationStates": 0,
      "IonizationEnergy": 2080.7,
      "ThermalConductivity": 0.0491,
      "ElectronAffinity": -120,
      "AbundanceCrust": 0.005,
      "AbundanceUniverse": 0.13,
      "Discovery": 1898,
      "Radioactive": 0,
      "DiscoveredBy": "W. Ramsay, W. Travers"
    },
    {
      "AtomicNumber": 11,
      "Symbol": "Na",
      "EnglishName": "Sodium",
      "Group": 1,
      "Period": 3,
      "Block": "s",
      "Category": 1,
      "AtomicMass": 22.98976928,
      "Configuration": "[Ne] 3s1",
      "ShellConfiguration": "2,8,1,,,,",
      "StandardState": 2,
      "Density": 0.971,
      "MeltingPoint": 370.87,
      "BoilingPoint": 1156,
      "HeatCapacity": 1.228,
      "HeatOfFusion": 2.6,
      "HeatOfVaporization": 97.42,
      "AtomicRadius": 190,
      "CovalentRadius": 154,
      "VanDerWaalsRadius": 227,
      "Electronegativity": 0.93,
      "OxidationStates": 1,
      "IonizationEnergy": 495.8,
      "ThermalConductivity": 142,
      "ElectronAffinity": 52.867,
      "AbundanceCrust": 23600,
      "AbundanceUniverse": 0.002,
      "Discovery": 1807,
      "Radioactive": 0,
      "DiscoveredBy": "H. Davy"
    },
    {
      "AtomicNumber": 12,
      "Symbol": "Mg",
      "EnglishName": "Magnesium",
      "Group": 2,
      "Period": 3,
      "Block": "s",
      "Category": 2,
      "AtomicMass": 24.305,
      "Configuration": "[Ne] 3s2",
      "ShellConfiguration": "2,8,2,,,,",
      "StandardState": 2,
      "Density": 1.738,
      "MeltingPoint": 923,
      "BoilingPoint": 1363,
      "HeatCapacity": 1.023,
      "HeatOfFusion": 8.48,
      "HeatOfVaporization": 128,
      "AtomicRadius": 145,
      "CovalentRadius": 130,
      "VanDerWaalsRadius": 173,
      "Electronegativity": 1.31,
      "OxidationStates": 2,
      "IonizationEnergy": 737.7,
      "ThermalConductivity": 156,
      "ElectronAffinity": -40,
      "AbundanceCrust": 23300,
      "AbundanceUniverse": 0.059,
      "Discovery": 1755,
      "Radioactive": 0,
      "DiscoveredBy": "J. Black"
    },
    {
      "AtomicNumber": 13,
      "Symbol": "Al",
      "EnglishName": "Aluminium",
      "Group": 13,
      "Period": 3,
      "Block": "p",
      "Category": 4,
      "AtomicMass": 26.9815385,
      "Configuration": "[Ne] 3s2 3p1",
      "ShellConfiguration": "2,8,3,,,,",
      "StandardState": 2,
      "Density": 2.698,
      "MeltingPoint": 933.47,
      "BoilingPoint": 2792,
      "HeatCapacity": 0.897,
      "HeatOfFusion": 10.71,
      "HeatOfVaporization": 284,
      "AtomicRadius": 118,
      "CovalentRadius": 118,
      "VanDerWaalsRadius": 184,
      "Electronegativity": 1.61,
      "OxidationStates": 3,
      "IonizationEnergy": 577.5,
      "ThermalConductivity": 237,
      "ElectronAffinity": 41.762,
      "AbundanceCrust": 82300,
      "AbundanceUniverse": 0.005,
      "Discovery": 1825,
      "Radioactive": 0,
      "DiscoveredBy": "H. C. Ørsted"
    },
    {
      "AtomicNumber": 14,
      "Symbol": "Si",
      "EnglishName": "Silicon",
      "Group": 14,
      "Period": 3,
      "Block": "p",
      "Category": 5,
      "AtomicMass": 28.085,
      "Configuration": "[Ne] 3s2 3p2",
      "ShellConfiguration": "2,8,4,,,,",
      "StandardState": 2,
      "Density": 2.3296,
      "MeltingPoint": 1687,
      "BoilingPoint": 3538,
      "HeatCapacity": 0.705,
      "HeatOfFusion": 50.21,
      "HeatOfVaporization": 359,
      "AtomicRadius": 111,
      "CovalentRadius": 111,
      "VanDerWaalsRadius": 210,
      "Electronegativity": 1.9,
      "OxidationStates": "-4,4",
      "IonizationEnergy": 786.5,
      "ThermalConductivity": 149,
      "ElectronAffinity": 134.068,
      "AbundanceCrust": 282000,
      "AbundanceUniverse": 0.07,
      "Discovery": 1823,
      "Radioactive": 0,
      "DiscoveredBy": "J. Berzelius"
    },
    {
      "AtomicNumber": 15,
      "Symbol": "P",
      "EnglishName": "Phosphorus",
      "Group": 15,
      "Period": 3,
      "Block": "p",
      "Category": 0,
      "AtomicMass": 30.973762,
      "Configuration": "[Ne] 3s2 3p3",
      "ShellConfiguration": "2,8,5,,,,",
      "StandardState": 2,
      "Density": 1.82,
      "MeltingPoint": 317.3,
      "BoilingPoint": 550,
      "HeatCapacity": 0.769,
      "HeatOfFusion": 0.66,
      "HeatOfVaporization": 12.4,
      "AtomicRadius": 98,
      "CovalentRadius": 106,
      "VanDerWaalsRadius": 180,
      "Electronegativity": 2.19,
      "OxidationStates": "-3,3,5",
      "IonizationEnergy": 1011.8,
      "ThermalConductivity": 0.236,
      "ElectronAffinity": 72.037,
      "AbundanceCrust": 1050,
      "AbundanceUniverse": 0.0007,
      "Discovery": 1669,
      "Radioactive": 0,
      "DiscoveredBy": "H. Brand"
    },
    {
      "AtomicNumber": 16,
      "Symbol": "S",
      "EnglishName": "Sulfur",
      "Group": 16,
      "Period": 3,
      "Block": "p",
      "Category": 0,
      "AtomicMass": 32.06,
      "Configuration": "[Ne] 3s2 3p4",
      "ShellConfiguration": "2,8,6,,,,",
      "StandardState": 2,
      "Density": 2.067,
      "MeltingPoint": 388.36,
      "BoilingPoint": 717.87,
      "HeatCapacity": 0.71,
      "HeatOfFusion": 1.727,
      "HeatOfVaporization": 45,
      "AtomicRadius": 88,
      "CovalentRadius": 102,
      "VanDerWaalsRadius": 180,
      "Electronegativity": 2.58,
      "OxidationStates": "-2,2,4,6",
      "IonizationEnergy": 999.6,
      "ThermalConductivity": 0.205,
      "ElectronAffinity": 200.41,
      "AbundanceCrust": 350,
      "AbundanceUniverse": 0.05,
      "Discovery": -2000,
      "Radioactive": 0,
      "DiscoveredBy": ""
    },
    {
      "AtomicNumber": 17,
      "Symbol": "Cl",
      "EnglishName": "Chlorine",
      "Group": 17,
      "Period": 3,
      "Block": "p",
      "Category": 6,
      "AtomicMass": 35.45,
      "Configuration": "[Ne] 3s2 3p5",
      "ShellConfiguration": "2,8,7,,,,",
      "StandardState": 0,
      "Density": 0.003214,
      "MeltingPoint": 171.6,
      "BoilingPoint": 239.11,
      "HeatCapacity": 0.479,
      "HeatOfFusion": 6.406,
      "HeatOfVaporization": 20.41,
      "AtomicRadius": 79,
      "CovalentRadius": 99,
      "VanDerWaalsRadius": 175,
      "Electronegativity": 3.16,
      "OxidationStates": "-1,1,3,5,7",
      "IonizationEnergy": 1251.2,
      "ThermalConductivity": 0.0089,
      "ElectronAffinity": 348.575,
      "AbundanceCrust": 145,
      "AbundanceUniverse": 0.0001,
      "Discovery": 1774,
      "Radioactive": 0,
      "DiscoveredBy": "W. Scheele"
    },
    {
      "AtomicNumber": 18,
      "Symbol": "Ar",
      "EnglishName": "Argon",
      "Group": 18,
      "Period": 3,
      "Block": "p",
      "Category": 7,
      "AtomicMass": 39.948,
      "Configuration": "[Ne] 3s2 3p6",
      "ShellConfiguration": "2,8,8,,,,",
      "StandardState": 0,
      "Density": 0.0017837,
      "MeltingPoint": 83.8,
      "BoilingPoint": 87.3,
      "HeatCapacity": 0.52,
      "HeatOfFusion": 1.18,
      "HeatOfVaporization": 6.53,
      "AtomicRadius": 71,
      "CovalentRadius": 97,
      "VanDerWaalsRadius": 188,
      "Electronegativity": "",
      "OxidationStates": 0,
      "IonizationEnergy": 1520.6,
      "ThermalConductivity": 0.01772,
      "ElectronAffinity": -96,
      "AbundanceCrust": 3.5,
      "AbundanceUniverse": 0.02,
      "Discovery": 1894,
      "Radioactive": 0,
      "DiscoveredBy": "Lord Rayleig, W. Ramsay"
    },
    {
      "AtomicNumber": 19,
      "Symbol": "K",
      "EnglishName": "Potassium",
      "Group": 1,
      "Period": 4,
      "Block": "s",
      "Category": 1,
      "AtomicMass": 39.0983,
      "Configuration": "[Ar] 4s1",
      "ShellConfiguration": "2,8,8,1,,,",
      "StandardState": 2,
      "Density": 0.862,
      "MeltingPoint": 336.53,
      "BoilingPoint": 1032,
      "HeatCapacity": 0.757,
      "HeatOfFusion": 2.321,
      "HeatOfVaporization": 76.9,
      "AtomicRadius": 243,
      "CovalentRadius": 196,
      "VanDerWaalsRadius": 275,
      "Electronegativity": 0.82,
      "OxidationStates": 1,
      "IonizationEnergy": 418.8,
      "ThermalConductivity": 102.5,
      "ElectronAffinity": 48.383,
      "AbundanceCrust": 20900,
      "AbundanceUniverse": 0.0003,
      "Discovery": 1807,
      "Radioactive": 0,
      "DiscoveredBy": "H. Davy"
    },
    {
      "AtomicNumber": 20,
      "Symbol": "Ca",
      "EnglishName": "Calcium",
      "Group": 2,
      "Period": 4,
      "Block": "s",
      "Category": 2,
      "AtomicMass": 40.078,
      "Configuration": "[Ar] 4s2",
      "ShellConfiguration": "2,8,8,2,,,",
      "StandardState": 2,
      "Density": 1.54,
      "MeltingPoint": 1115,
      "BoilingPoint": 1757,
      "HeatCapacity": 0.647,
      "HeatOfFusion": 8.54,
      "HeatOfVaporization": 154.7,
      "AtomicRadius": 194,
      "CovalentRadius": 174,
      "VanDerWaalsRadius": 231,
      "Electronegativity": 1,
      "OxidationStates": 2,
      "IonizationEnergy": 589.8,
      "ThermalConductivity": 201,
      "ElectronAffinity": 2.37,
      "AbundanceCrust": 41500,
      "AbundanceUniverse": 0.007,
      "Discovery": 1808,
      "Radioactive": 0,
      "DiscoveredBy": "H. Davy"
    },
    {
      "AtomicNumber": 21,
      "Symbol": "Sc",
      "EnglishName": "Scandium",
      "Group": 3,
      "Period": 4,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 44.955908,
      "Configuration": "[Ar] 3d1 4s2",
      "ShellConfiguration": "2,8,9,2,,,",
      "StandardState": 2,
      "Density": 2.989,
      "MeltingPoint": 1814,
      "BoilingPoint": 3109,
      "HeatCapacity": 0.568,
      "HeatOfFusion": 14.1,
      "HeatOfVaporization": 332.7,
      "AtomicRadius": 184,
      "CovalentRadius": 144,
      "VanDerWaalsRadius": 211,
      "Electronegativity": 1.36,
      "OxidationStates": 3,
      "IonizationEnergy": 633.1,
      "ThermalConductivity": 15.8,
      "ElectronAffinity": 18,
      "AbundanceCrust": 22,
      "AbundanceUniverse": 0.000003,
      "Discovery": 1879,
      "Radioactive": 0,
      "DiscoveredBy": "F. Nilson"
    },
    {
      "AtomicNumber": 22,
      "Symbol": "Ti",
      "EnglishName": "Titanium",
      "Group": 4,
      "Period": 4,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 47.867,
      "Configuration": "[Ar] 3d2 4s2",
      "ShellConfiguration": "2,8,10,2,,,",
      "StandardState": 2,
      "Density": 4.54,
      "MeltingPoint": 1941,
      "BoilingPoint": 3560,
      "HeatCapacity": 0.523,
      "HeatOfFusion": 14.15,
      "HeatOfVaporization": 425,
      "AtomicRadius": 176,
      "CovalentRadius": 136,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.54,
      "OxidationStates": "3,4",
      "IonizationEnergy": 658.8,
      "ThermalConductivity": 21.9,
      "ElectronAffinity": 8,
      "AbundanceCrust": 5650,
      "AbundanceUniverse": 0.0003,
      "Discovery": 1791,
      "Radioactive": 0,
      "DiscoveredBy": "W. Gregor"
    },
    {
      "AtomicNumber": 23,
      "Symbol": "V",
      "EnglishName": "Vanadium",
      "Group": 5,
      "Period": 4,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 50.9415,
      "Configuration": "[Ar] 3d3 4s2",
      "ShellConfiguration": "2,8,11,2,,,",
      "StandardState": 2,
      "Density": 6.11,
      "MeltingPoint": 2183,
      "BoilingPoint": 3680,
      "HeatCapacity": 0.489,
      "HeatOfFusion": 21.5,
      "HeatOfVaporization": 444,
      "AtomicRadius": 171,
      "CovalentRadius": 125,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.63,
      "OxidationStates": "2,3,4,5",
      "IonizationEnergy": 650.9,
      "ThermalConductivity": 30.7,
      "ElectronAffinity": 50.911,
      "AbundanceCrust": 120,
      "AbundanceUniverse": 0.0001,
      "Discovery": 1801,
      "Radioactive": 0,
      "DiscoveredBy": "M. del Río"
    },
    {
      "AtomicNumber": 24,
      "Symbol": "Cr",
      "EnglishName": "Chromium",
      "Group": 6,
      "Period": 4,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 51.9961,
      "Configuration": "[Ar] 3d5 4s1",
      "ShellConfiguration": "2,8,13,1,,,",
      "StandardState": 2,
      "Density": 7.15,
      "MeltingPoint": 2180,
      "BoilingPoint": 2944,
      "HeatCapacity": 0.449,
      "HeatOfFusion": 21,
      "HeatOfVaporization": 339.5,
      "AtomicRadius": 166,
      "CovalentRadius": 127,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.66,
      "OxidationStates": "2,3,6",
      "IonizationEnergy": 652.9,
      "ThermalConductivity": 93.9,
      "ElectronAffinity": 65.21,
      "AbundanceCrust": 102,
      "AbundanceUniverse": 0.0015,
      "Discovery": 1794,
      "Radioactive": 0,
      "DiscoveredBy": "N. Vauquelin"
    },
    {
      "AtomicNumber": 25,
      "Symbol": "Mn",
      "EnglishName": "Manganese",
      "Group": 7,
      "Period": 4,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 54.938044,
      "Configuration": "[Ar] 3d5 4s2",
      "ShellConfiguration": "2,8,13,2,,,",
      "StandardState": 2,
      "Density": 7.44,
      "MeltingPoint": 1519,
      "BoilingPoint": 2334,
      "HeatCapacity": 0.479,
      "HeatOfFusion": 12.91,
      "HeatOfVaporization": 221,
      "AtomicRadius": 161,
      "CovalentRadius": 139,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.55,
      "OxidationStates": "2,3,4,6,7",
      "IonizationEnergy": 717.3,
      "ThermalConductivity": 7.81,
      "ElectronAffinity": -50,
      "AbundanceCrust": 950,
      "AbundanceUniverse": 0.0008,
      "Discovery": 1774,
      "Radioactive": 0,
      "DiscoveredBy": "W. Scheele"
    },
    {
      "AtomicNumber": 26,
      "Symbol": "Fe",
      "EnglishName": "Iron",
      "Group": 8,
      "Period": 4,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 55.845,
      "Configuration": "[Ar] 3d6 4s2",
      "ShellConfiguration": "2,8,14,2,,,",
      "StandardState": 2,
      "Density": 7.874,
      "MeltingPoint": 1811,
      "BoilingPoint": 3134,
      "HeatCapacity": 0.449,
      "HeatOfFusion": 13.81,
      "HeatOfVaporization": 340,
      "AtomicRadius": 156,
      "CovalentRadius": 125,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.83,
      "OxidationStates": "2,3,6",
      "IonizationEnergy": 762.5,
      "ThermalConductivity": 80.4,
      "ElectronAffinity": 14.785,
      "AbundanceCrust": 56300,
      "AbundanceUniverse": 0.11,
      "Discovery": -5000,
      "Radioactive": 0,
      "DiscoveredBy": ""
    },
    {
      "AtomicNumber": 27,
      "Symbol": "Co",
      "EnglishName": "Cobalt",
      "Group": 9,
      "Period": 4,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 58.933194,
      "Configuration": "[Ar] 3d7 4s2",
      "ShellConfiguration": "2,8,15,2,,,",
      "StandardState": 2,
      "Density": 8.86,
      "MeltingPoint": 1768,
      "BoilingPoint": 3200,
      "HeatCapacity": 0.421,
      "HeatOfFusion": 16.06,
      "HeatOfVaporization": 377,
      "AtomicRadius": 152,
      "CovalentRadius": 126,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.88,
      "OxidationStates": "2,3",
      "IonizationEnergy": 760.4,
      "ThermalConductivity": 100,
      "ElectronAffinity": 63.898,
      "AbundanceCrust": 25,
      "AbundanceUniverse": 0.0003,
      "Discovery": 1735,
      "Radioactive": 0,
      "DiscoveredBy": "G. Brandt"
    },
    {
      "AtomicNumber": 28,
      "Symbol": "Ni",
      "EnglishName": "Nickel",
      "Group": 10,
      "Period": 4,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 58.6934,
      "Configuration": "[Ar] 3d8 4s2",
      "ShellConfiguration": "2,8,16,2,,,",
      "StandardState": 2,
      "Density": 8.912,
      "MeltingPoint": 1728,
      "BoilingPoint": 3186,
      "HeatCapacity": 0.444,
      "HeatOfFusion": 17.48,
      "HeatOfVaporization": 379,
      "AtomicRadius": 149,
      "CovalentRadius": 121,
      "VanDerWaalsRadius": 163,
      "Electronegativity": 1.91,
      "OxidationStates": "2,3",
      "IonizationEnergy": 737.1,
      "ThermalConductivity": 90.9,
      "ElectronAffinity": 111.65,
      "AbundanceCrust": 84,
      "AbundanceUniverse": 0.006,
      "Discovery": 1751,
      "Radioactive": 0,
      "DiscoveredBy": "F. Cronstedt"
    },
    {
      "AtomicNumber": 29,
      "Symbol": "Cu",
      "EnglishName": "Copper",
      "Group": 11,
      "Period": 4,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 63.546,
      "Configuration": "[Ar] 3d10 4s1",
      "ShellConfiguration": "2,8,18,1,,,",
      "StandardState": 2,
      "Density": 8.96,
      "MeltingPoint": 1357.77,
      "BoilingPoint": 2835,
      "HeatCapacity": 0.385,
      "HeatOfFusion": 13.26,
      "HeatOfVaporization": 300.4,
      "AtomicRadius": 145,
      "CovalentRadius": 138,
      "VanDerWaalsRadius": 140,
      "Electronegativity": 1.9,
      "OxidationStates": "1,2",
      "IonizationEnergy": 745.5,
      "ThermalConductivity": 401,
      "ElectronAffinity": 119.235,
      "AbundanceCrust": 60,
      "AbundanceUniverse": 0.000006,
      "Discovery": -9000,
      "Radioactive": 0,
      "DiscoveredBy": ""
    },
    {
      "AtomicNumber": 30,
      "Symbol": "Zn",
      "EnglishName": "Zinc",
      "Group": 12,
      "Period": 4,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 65.38,
      "Configuration": "[Ar] 3d10 4s2",
      "ShellConfiguration": "2,8,18,2,,,",
      "StandardState": 2,
      "Density": 7.134,
      "MeltingPoint": 692.88,
      "BoilingPoint": 1180,
      "HeatCapacity": 0.388,
      "HeatOfFusion": 7.32,
      "HeatOfVaporization": 115,
      "AtomicRadius": 142,
      "CovalentRadius": 131,
      "VanDerWaalsRadius": 139,
      "Electronegativity": 1.65,
      "OxidationStates": 2,
      "IonizationEnergy": 906.4,
      "ThermalConductivity": 116,
      "ElectronAffinity": -60,
      "AbundanceCrust": 70,
      "AbundanceUniverse": 0.00003,
      "Discovery": -1000,
      "Radioactive": 0,
      "DiscoveredBy": ""
    },
    {
      "AtomicNumber": 31,
      "Symbol": "Ga",
      "EnglishName": "Gallium",
      "Group": 13,
      "Period": 4,
      "Block": "p",
      "Category": 4,
      "AtomicMass": 69.723,
      "Configuration": "[Ar] 3d10 4s2 4p1",
      "ShellConfiguration": "2,8,18,3,,,",
      "StandardState": 2,
      "Density": 5.907,
      "MeltingPoint": 302.9146,
      "BoilingPoint": 2673,
      "HeatCapacity": 0.371,
      "HeatOfFusion": 5.59,
      "HeatOfVaporization": 256,
      "AtomicRadius": 136,
      "CovalentRadius": 126,
      "VanDerWaalsRadius": 187,
      "Electronegativity": 1.81,
      "OxidationStates": 3,
      "IonizationEnergy": 578.8,
      "ThermalConductivity": 40.6,
      "ElectronAffinity": 41,
      "AbundanceCrust": 19,
      "AbundanceUniverse": 0.000001,
      "Discovery": 1875,
      "Radioactive": 0,
      "DiscoveredBy": "P. E. L. de Boisbaudran"
    },
    {
      "AtomicNumber": 32,
      "Symbol": "Ge",
      "EnglishName": "Germanium",
      "Group": 14,
      "Period": 4,
      "Block": "p",
      "Category": 5,
      "AtomicMass": 72.63,
      "Configuration": "[Ar] 3d10 4s2 4p2",
      "ShellConfiguration": "2,8,18,4,,,",
      "StandardState": 2,
      "Density": 5.323,
      "MeltingPoint": 1211.4,
      "BoilingPoint": 3106,
      "HeatCapacity": 0.32,
      "HeatOfFusion": 36.94,
      "HeatOfVaporization": 334,
      "AtomicRadius": 125,
      "CovalentRadius": 122,
      "VanDerWaalsRadius": 211,
      "Electronegativity": 2.01,
      "OxidationStates": "-4,2,4",
      "IonizationEnergy": 762,
      "ThermalConductivity": 60.2,
      "ElectronAffinity": 118.935,
      "AbundanceCrust": 1.5,
      "AbundanceUniverse": 0.00002,
      "Discovery": 1886,
      "Radioactive": 0,
      "DiscoveredBy": "C. A. Winkler"
    },
    {
      "AtomicNumber": 33,
      "Symbol": "As",
      "EnglishName": "Arsenic",
      "Group": 15,
      "Period": 4,
      "Block": "p",
      "Category": 5,
      "AtomicMass": 74.921595,
      "Configuration": "[Ar] 3d10 4s2 4p3",
      "ShellConfiguration": "2,8,18,5,,,",
      "StandardState": 2,
      "Density": 5.776,
      "MeltingPoint": 1090,
      "BoilingPoint": 887,
      "HeatCapacity": 0.329,
      "HeatOfFusion": 24.44,
      "HeatOfVaporization": 32.4,
      "AtomicRadius": 114,
      "CovalentRadius": 119,
      "VanDerWaalsRadius": 185,
      "Electronegativity": 2.18,
      "OxidationStates": "-3,3,5",
      "IonizationEnergy": 947,
      "ThermalConductivity": 50.2,
      "ElectronAffinity": 77.65,
      "AbundanceCrust": 1.8,
      "AbundanceUniverse": 8e-7,
      "Discovery": 300,
      "Radioactive": 0,
      "DiscoveredBy": ""
    },
    {
      "AtomicNumber": 34,
      "Symbol": "Se",
      "EnglishName": "Selenium",
      "Group": 16,
      "Period": 4,
      "Block": "p",
      "Category": 0,
      "AtomicMass": 78.971,
      "Configuration": "[Ar] 3d10 4s2 4p4",
      "ShellConfiguration": "2,8,18,6,,,",
      "StandardState": 2,
      "Density": 4.809,
      "MeltingPoint": 453,
      "BoilingPoint": 958,
      "HeatCapacity": 0.321,
      "HeatOfFusion": 6.69,
      "HeatOfVaporization": 95.48,
      "AtomicRadius": 103,
      "CovalentRadius": 116,
      "VanDerWaalsRadius": 190,
      "Electronegativity": 2.55,
      "OxidationStates": "-2,2,4,6",
      "IonizationEnergy": 941,
      "ThermalConductivity": 0.519,
      "ElectronAffinity": 194.958,
      "AbundanceCrust": 0.05,
      "AbundanceUniverse": 0.000003,
      "Discovery": 1817,
      "Radioactive": 0,
      "DiscoveredBy": "J. Berzelius, G. Gahn"
    },
    {
      "AtomicNumber": 35,
      "Symbol": "Br",
      "EnglishName": "Bromine",
      "Group": 17,
      "Period": 4,
      "Block": "p",
      "Category": 6,
      "AtomicMass": 79.904,
      "Configuration": "[Ar] 3d10 4s2 4p5",
      "ShellConfiguration": "2,8,18,7,,,",
      "StandardState": 1,
      "Density": 3.122,
      "MeltingPoint": 265.8,
      "BoilingPoint": 332,
      "HeatCapacity": 0.474,
      "HeatOfFusion": 10.57,
      "HeatOfVaporization": 29.96,
      "AtomicRadius": 94,
      "CovalentRadius": 114,
      "VanDerWaalsRadius": 185,
      "Electronegativity": 2.96,
      "OxidationStates": "-1,1,3,5,7",
      "IonizationEnergy": 1139.9,
      "ThermalConductivity": 0.12,
      "ElectronAffinity": 324.537,
      "AbundanceCrust": 2.4,
      "AbundanceUniverse": 7e-7,
      "Discovery": 1825,
      "Radioactive": 0,
      "DiscoveredBy": "J. Balard, C. Löwig"
    },
    {
      "AtomicNumber": 36,
      "Symbol": "Kr",
      "EnglishName": "Krypton",
      "Group": 18,
      "Period": 4,
      "Block": "p",
      "Category": 7,
      "AtomicMass": 83.798,
      "Configuration": "[Ar] 3d10 4s2 4p6",
      "ShellConfiguration": "2,8,18,8,,,",
      "StandardState": 0,
      "Density": 0.003733,
      "MeltingPoint": 115.79,
      "BoilingPoint": 119.93,
      "HeatCapacity": 0.248,
      "HeatOfFusion": 1.64,
      "HeatOfVaporization": 9.08,
      "AtomicRadius": 88,
      "CovalentRadius": 110,
      "VanDerWaalsRadius": 202,
      "Electronegativity": 3,
      "OxidationStates": 0,
      "IonizationEnergy": 1350.8,
      "ThermalConductivity": 0.00943,
      "ElectronAffinity": -60,
      "AbundanceCrust": 0.0001,
      "AbundanceUniverse": 0.000004,
      "Discovery": 1898,
      "Radioactive": 0,
      "DiscoveredBy": "W. Ramsay, W. Travers"
    },
    {
      "AtomicNumber": 37,
      "Symbol": "Rb",
      "EnglishName": "Rubidium",
      "Group": 1,
      "Period": 5,
      "Block": "s",
      "Category": 1,
      "AtomicMass": 85.4678,
      "Configuration": "[Kr] 5s1",
      "ShellConfiguration": "2,8,18,8,1,,",
      "StandardState": 2,
      "Density": 1.532,
      "MeltingPoint": 312.46,
      "BoilingPoint": 961,
      "HeatCapacity": 0.363,
      "HeatOfFusion": 2.19,
      "HeatOfVaporization": 75.77,
      "AtomicRadius": 265,
      "CovalentRadius": 211,
      "VanDerWaalsRadius": 303,
      "Electronegativity": 0.82,
      "OxidationStates": 1,
      "IonizationEnergy": 403,
      "ThermalConductivity": 58.2,
      "ElectronAffinity": 46.884,
      "AbundanceCrust": 90,
      "AbundanceUniverse": 0.000001,
      "Discovery": 1861,
      "Radioactive": 0,
      "DiscoveredBy": "R. Bunsen, G. R. Kirchhoff"
    },
    {
      "AtomicNumber": 38,
      "Symbol": "Sr",
      "EnglishName": "Strontium",
      "Group": 2,
      "Period": 5,
      "Block": "s",
      "Category": 2,
      "AtomicMass": 87.62,
      "Configuration": "[Kr] 5s2",
      "ShellConfiguration": "2,8,18,8,2,,",
      "StandardState": 2,
      "Density": 2.64,
      "MeltingPoint": 1050,
      "BoilingPoint": 1655,
      "HeatCapacity": 0.301,
      "HeatOfFusion": 7.43,
      "HeatOfVaporization": 141,
      "AtomicRadius": 219,
      "CovalentRadius": 192,
      "VanDerWaalsRadius": 249,
      "Electronegativity": 0.95,
      "OxidationStates": 2,
      "IonizationEnergy": 549.5,
      "ThermalConductivity": 35.4,
      "ElectronAffinity": 5.023,
      "AbundanceCrust": 370,
      "AbundanceUniverse": 0.000004,
      "Discovery": 1787,
      "Radioactive": 0,
      "DiscoveredBy": "W. Cruikshank"
    },
    {
      "AtomicNumber": 39,
      "Symbol": "Y",
      "EnglishName": "Yttrium",
      "Group": 3,
      "Period": 5,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 88.90584,
      "Configuration": "[Kr] 4d1 5s2",
      "ShellConfiguration": "2,8,18,9,2,,",
      "StandardState": 2,
      "Density": 4.469,
      "MeltingPoint": 1799,
      "BoilingPoint": 3609,
      "HeatCapacity": 0.298,
      "HeatOfFusion": 11.42,
      "HeatOfVaporization": 390,
      "AtomicRadius": 212,
      "CovalentRadius": 162,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.22,
      "OxidationStates": 3,
      "IonizationEnergy": 600,
      "ThermalConductivity": 17.2,
      "ElectronAffinity": 29.6,
      "AbundanceCrust": 33,
      "AbundanceUniverse": 7e-7,
      "Discovery": 1794,
      "Radioactive": 0,
      "DiscoveredBy": "J. Gadolin"
    },
    {
      "AtomicNumber": 40,
      "Symbol": "Zr",
      "EnglishName": "Zirconium",
      "Group": 4,
      "Period": 5,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 91.224,
      "Configuration": "[Kr] 4d2 5s2",
      "ShellConfiguration": "2,8,18,10,2,,",
      "StandardState": 2,
      "Density": 6.506,
      "MeltingPoint": 2128,
      "BoilingPoint": 4682,
      "HeatCapacity": 0.278,
      "HeatOfFusion": 14,
      "HeatOfVaporization": 573,
      "AtomicRadius": 206,
      "CovalentRadius": 148,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.33,
      "OxidationStates": 4,
      "IonizationEnergy": 640.1,
      "ThermalConductivity": 22.6,
      "ElectronAffinity": 41.81,
      "AbundanceCrust": 165,
      "AbundanceUniverse": 0.000005,
      "Discovery": 1789,
      "Radioactive": 0,
      "DiscoveredBy": "H. Klaproth"
    },
    {
      "AtomicNumber": 41,
      "Symbol": "Nb",
      "EnglishName": "Niobium",
      "Group": 5,
      "Period": 5,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 92.90637,
      "Configuration": "[Kr] 4d4 5s1",
      "ShellConfiguration": "2,8,18,12,1,,",
      "StandardState": 2,
      "Density": 8.57,
      "MeltingPoint": 2750,
      "BoilingPoint": 5017,
      "HeatCapacity": 0.265,
      "HeatOfFusion": 30,
      "HeatOfVaporization": 689.9,
      "AtomicRadius": 198,
      "CovalentRadius": 137,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.6,
      "OxidationStates": "3,5",
      "IonizationEnergy": 652.1,
      "ThermalConductivity": 53.7,
      "ElectronAffinity": 88.516,
      "AbundanceCrust": 20,
      "AbundanceUniverse": 2e-7,
      "Discovery": 1801,
      "Radioactive": 0,
      "DiscoveredBy": "C. Hatchett"
    },
    {
      "AtomicNumber": 42,
      "Symbol": "Mo",
      "EnglishName": "Molybdenum",
      "Group": 6,
      "Period": 5,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 95.95,
      "Configuration": "[Kr] 4d5 5s1",
      "ShellConfiguration": "2,8,18,13,1,,",
      "StandardState": 2,
      "Density": 10.22,
      "MeltingPoint": 2896,
      "BoilingPoint": 4912,
      "HeatCapacity": 0.251,
      "HeatOfFusion": 37.48,
      "HeatOfVaporization": 617,
      "AtomicRadius": 190,
      "CovalentRadius": 145,
      "VanDerWaalsRadius": "",
      "Electronegativity": 2.16,
      "OxidationStates": "2,3,4,5,6",
      "IonizationEnergy": 684.3,
      "ThermalConductivity": 138,
      "ElectronAffinity": 72.1,
      "AbundanceCrust": 1.2,
      "AbundanceUniverse": 5e-7,
      "Discovery": 1778,
      "Radioactive": 0,
      "DiscoveredBy": "W. Scheele"
    },
    {
      "AtomicNumber": 43,
      "Symbol": "Tc",
      "EnglishName": "Technetium",
      "Group": 7,
      "Period": 5,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 98,
      "Configuration": "[Kr] 4d5 5s2",
      "ShellConfiguration": "2,8,18,13,2,,",
      "StandardState": 2,
      "Density": 11.5,
      "MeltingPoint": 2430,
      "BoilingPoint": 4538,
      "HeatCapacity": "",
      "HeatOfFusion": 33.29,
      "HeatOfVaporization": 585.2,
      "AtomicRadius": 183,
      "CovalentRadius": 156,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.9,
      "OxidationStates": "4,7",
      "IonizationEnergy": 702,
      "ThermalConductivity": 50.6,
      "ElectronAffinity": 53.067,
      "AbundanceCrust": 3e-9,
      "AbundanceUniverse": "",
      "Discovery": 1937,
      "Radioactive": 1,
      "DiscoveredBy": "C. Perrier and E. Segrè"
    },
    {
      "AtomicNumber": 44,
      "Symbol": "Ru",
      "EnglishName": "Ruthenium",
      "Group": 8,
      "Period": 5,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 101.07,
      "Configuration": "[Kr] 4d7 5s1",
      "ShellConfiguration": "2,8,18,15,1,,",
      "StandardState": 2,
      "Density": 12.37,
      "MeltingPoint": 2607,
      "BoilingPoint": 4423,
      "HeatCapacity": 0.238,
      "HeatOfFusion": 38.59,
      "HeatOfVaporization": 619,
      "AtomicRadius": 178,
      "CovalentRadius": 126,
      "VanDerWaalsRadius": "",
      "Electronegativity": 2.2,
      "OxidationStates": "3,4,6",
      "IonizationEnergy": 710.2,
      "ThermalConductivity": 117,
      "ElectronAffinity": 100.96,
      "AbundanceCrust": 0.001,
      "AbundanceUniverse": 4e-7,
      "Discovery": 1844,
      "Radioactive": 0,
      "DiscoveredBy": "K. Claus"
    },
    {
      "AtomicNumber": 45,
      "Symbol": "Rh",
      "EnglishName": "Rhodium",
      "Group": 9,
      "Period": 5,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 102.9055,
      "Configuration": "[Kr] 4d8 5s1",
      "ShellConfiguration": "2,8,18,16,1,,",
      "StandardState": 2,
      "Density": 12.41,
      "MeltingPoint": 2237,
      "BoilingPoint": 3968,
      "HeatCapacity": 0.243,
      "HeatOfFusion": 26.59,
      "HeatOfVaporization": 494,
      "AtomicRadius": 173,
      "CovalentRadius": 135,
      "VanDerWaalsRadius": "",
      "Electronegativity": 2.28,
      "OxidationStates": "3,4",
      "IonizationEnergy": 719.7,
      "ThermalConductivity": 150,
      "ElectronAffinity": 110.27,
      "AbundanceCrust": 0.001,
      "AbundanceUniverse": 6e-8,
      "Discovery": 1804,
      "Radioactive": 0,
      "DiscoveredBy": "H. Wollaston"
    },
    {
      "AtomicNumber": 46,
      "Symbol": "Pd",
      "EnglishName": "Palladium",
      "Group": 10,
      "Period": 5,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 106.42,
      "Configuration": "[Kr] 4d10",
      "ShellConfiguration": "2,8,18,18,,,",
      "StandardState": 2,
      "Density": 12.02,
      "MeltingPoint": 1828.05,
      "BoilingPoint": 3236,
      "HeatCapacity": 0.244,
      "HeatOfFusion": 16.74,
      "HeatOfVaporization": 358,
      "AtomicRadius": 169,
      "CovalentRadius": 131,
      "VanDerWaalsRadius": 163,
      "Electronegativity": 2.2,
      "OxidationStates": "2,4",
      "IonizationEnergy": 804.4,
      "ThermalConductivity": 71.8,
      "ElectronAffinity": 54.24,
      "AbundanceCrust": 0.015,
      "AbundanceUniverse": 2e-7,
      "Discovery": 1802,
      "Radioactive": 0,
      "DiscoveredBy": "H. Wollaston"
    },
    {
      "AtomicNumber": 47,
      "Symbol": "Ag",
      "EnglishName": "Silver",
      "Group": 11,
      "Period": 5,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 107.8682,
      "Configuration": "[Kr] 4d10 5s1",
      "ShellConfiguration": "2,8,18,18,1,,",
      "StandardState": 2,
      "Density": 10.501,
      "MeltingPoint": 1234.93,
      "BoilingPoint": 2435,
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      "HeatOfFusion": 11.28,
      "HeatOfVaporization": 254,
      "AtomicRadius": 165,
      "CovalentRadius": 153,
      "VanDerWaalsRadius": 172,
      "Electronegativity": 1.93,
      "OxidationStates": "1,2",
      "IonizationEnergy": 731,
      "ThermalConductivity": 429,
      "ElectronAffinity": 125.862,
      "AbundanceCrust": 0.075,
      "AbundanceUniverse": 6e-8,
      "Discovery": -5000,
      "Radioactive": 0,
      "DiscoveredBy": ""
    },
    {
      "AtomicNumber": 48,
      "Symbol": "Cd",
      "EnglishName": "Cadmium",
      "Group": 12,
      "Period": 5,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 112.414,
      "Configuration": "[Kr] 4d10 5s2",
      "ShellConfiguration": "2,8,18,18,2,,",
      "StandardState": 2,
      "Density": 8.69,
      "MeltingPoint": 594.22,
      "BoilingPoint": 1040,
      "HeatCapacity": 0.232,
      "HeatOfFusion": 6.21,
      "HeatOfVaporization": 99.87,
      "AtomicRadius": 161,
      "CovalentRadius": 148,
      "VanDerWaalsRadius": 158,
      "Electronegativity": 1.69,
      "OxidationStates": 2,
      "IonizationEnergy": 867.8,
      "ThermalConductivity": 96.6,
      "ElectronAffinity": -70,
      "AbundanceCrust": 0.159,
      "AbundanceUniverse": 2e-7,
      "Discovery": 1817,
      "Radioactive": 0,
      "DiscoveredBy": "S. L Hermann, F. Stromeyer, J.C.H. Roloff"
    },
    {
      "AtomicNumber": 49,
      "Symbol": "In",
      "EnglishName": "Indium",
      "Group": 13,
      "Period": 5,
      "Block": "p",
      "Category": 4,
      "AtomicMass": 114.818,
      "Configuration": "[Kr] 4d10 5s2 5p1",
      "ShellConfiguration": "2,8,18,18,3,,",
      "StandardState": 2,
      "Density": 7.31,
      "MeltingPoint": 429.75,
      "BoilingPoint": 2345,
      "HeatCapacity": 0.233,
      "HeatOfFusion": 3.281,
      "HeatOfVaporization": 231.8,
      "AtomicRadius": 156,
      "CovalentRadius": 144,
      "VanDerWaalsRadius": 193,
      "Electronegativity": 1.78,
      "OxidationStates": 3,
      "IonizationEnergy": 558.3,
      "ThermalConductivity": 81.8,
      "ElectronAffinity": 28.95,
      "AbundanceCrust": 0.25,
      "AbundanceUniverse": 3e-8,
      "Discovery": 1863,
      "Radioactive": 0,
      "DiscoveredBy": "F. Reich, T. Richter"
    },
    {
      "AtomicNumber": 50,
      "Symbol": "Sn",
      "EnglishName": "Tin",
      "Group": 14,
      "Period": 5,
      "Block": "p",
      "Category": 4,
      "AtomicMass": 118.71,
      "Configuration": "[Kr] 4d10 5s2 5p2",
      "ShellConfiguration": "2,8,18,18,4,,",
      "StandardState": 2,
      "Density": 7.287,
      "MeltingPoint": 505.08,
      "BoilingPoint": 2875,
      "HeatCapacity": 0.228,
      "HeatOfFusion": 7.03,
      "HeatOfVaporization": 296.1,
      "AtomicRadius": 145,
      "CovalentRadius": 141,
      "VanDerWaalsRadius": 217,
      "Electronegativity": 1.96,
      "OxidationStates": "-4,2,4",
      "IonizationEnergy": 708.6,
      "ThermalConductivity": 66.8,
      "ElectronAffinity": 107.298,
      "AbundanceCrust": 2.3,
      "AbundanceUniverse": 4e-7,
      "Discovery": -3500,
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      "DiscoveredBy": ""
    },
    {
      "AtomicNumber": 51,
      "Symbol": "Sb",
      "EnglishName": "Antimony",
      "Group": 15,
      "Period": 5,
      "Block": "p",
      "Category": 5,
      "AtomicMass": 121.76,
      "Configuration": "[Kr] 4d10 5s2 5p3",
      "ShellConfiguration": "2,8,18,18,5,,",
      "StandardState": 2,
      "Density": 6.685,
      "MeltingPoint": 903.78,
      "BoilingPoint": 1860,
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      "HeatOfFusion": 19.79,
      "HeatOfVaporization": 193.43,
      "AtomicRadius": 133,
      "CovalentRadius": 138,
      "VanDerWaalsRadius": 206,
      "Electronegativity": 2.05,
      "OxidationStates": "-3,3,5",
      "IonizationEnergy": 834,
      "ThermalConductivity": 24.4,
      "ElectronAffinity": 101.059,
      "AbundanceCrust": 0.2,
      "AbundanceUniverse": 4e-8,
      "Discovery": -3000,
      "Radioactive": 0,
      "DiscoveredBy": ""
    },
    {
      "AtomicNumber": 52,
      "Symbol": "Te",
      "EnglishName": "Tellurium",
      "Group": 16,
      "Period": 5,
      "Block": "p",
      "Category": 5,
      "AtomicMass": 127.6,
      "Configuration": "[Kr] 4d10 5s2 5p4",
      "ShellConfiguration": "2,8,18,18,6,,",
      "StandardState": 2,
      "Density": 6.232,
      "MeltingPoint": 722.66,
      "BoilingPoint": 1261,
      "HeatCapacity": 0.202,
      "HeatOfFusion": 17.49,
      "HeatOfVaporization": 114.1,
      "AtomicRadius": 123,
      "CovalentRadius": 135,
      "VanDerWaalsRadius": 206,
      "Electronegativity": 2.1,
      "OxidationStates": "-2,2,4,6",
      "IonizationEnergy": 869.3,
      "ThermalConductivity": 3,
      "ElectronAffinity": 190.161,
      "AbundanceCrust": 0.001,
      "AbundanceUniverse": 9e-7,
      "Discovery": 1782,
      "Radioactive": 0,
      "DiscoveredBy": "F.-J.M. von Reichenstein"
    },
    {
      "AtomicNumber": 53,
      "Symbol": "I",
      "EnglishName": "Iodine",
      "Group": 17,
      "Period": 5,
      "Block": "p",
      "Category": 6,
      "AtomicMass": 126.90447,
      "Configuration": "[Kr] 4d10 5s2 5p5",
      "ShellConfiguration": "2,8,18,18,7,,",
      "StandardState": 2,
      "Density": 4.93,
      "MeltingPoint": 386.85,
      "BoilingPoint": 457.4,
      "HeatCapacity": 0.214,
      "HeatOfFusion": 15.52,
      "HeatOfVaporization": 41.57,
      "AtomicRadius": 115,
      "CovalentRadius": 133,
      "VanDerWaalsRadius": 198,
      "Electronegativity": 2.66,
      "OxidationStates": "-1,1,3,5,7",
      "IonizationEnergy": 1008.4,
      "ThermalConductivity": 0.45,
      "ElectronAffinity": 295.1531,
      "AbundanceCrust": 0.45,
      "AbundanceUniverse": 1e-7,
      "Discovery": 1811,
      "Radioactive": 0,
      "DiscoveredBy": "B. Courtois"
    },
    {
      "AtomicNumber": 54,
      "Symbol": "Xe",
      "EnglishName": "Xenon",
      "Group": 18,
      "Period": 5,
      "Block": "p",
      "Category": 7,
      "AtomicMass": 131.293,
      "Configuration": "[Kr] 4d10 5s2 5p6",
      "ShellConfiguration": "2,8,18,18,8,,",
      "StandardState": 0,
      "Density": 0.005887,
      "MeltingPoint": 161.4,
      "BoilingPoint": 165.03,
      "HeatCapacity": 0.158,
      "HeatOfFusion": 2.27,
      "HeatOfVaporization": 12.64,
      "AtomicRadius": 108,
      "CovalentRadius": 130,
      "VanDerWaalsRadius": 216,
      "Electronegativity": 2.6,
      "OxidationStates": "2,4,6",
      "IonizationEnergy": 1170.4,
      "ThermalConductivity": 0.00565,
      "ElectronAffinity": -80,
      "AbundanceCrust": 0.00003,
      "AbundanceUniverse": 0.000001,
      "Discovery": 1898,
      "Radioactive": 0,
      "DiscoveredBy": "W. Ramsay, W. Travers"
    },
    {
      "AtomicNumber": 55,
      "Symbol": "Cs",
      "EnglishName": "Caesium",
      "Group": 1,
      "Period": 6,
      "Block": "s",
      "Category": 1,
      "AtomicMass": 132.905452,
      "Configuration": "[Xe] 6s1",
      "ShellConfiguration": "2,8,18,18,8,1,",
      "StandardState": 2,
      "Density": 1.873,
      "MeltingPoint": 301.59,
      "BoilingPoint": 944,
      "HeatCapacity": 0.242,
      "HeatOfFusion": 2.09,
      "HeatOfVaporization": 63.9,
      "AtomicRadius": 298,
      "CovalentRadius": 225,
      "VanDerWaalsRadius": 343,
      "Electronegativity": 0.79,
      "OxidationStates": 1,
      "IonizationEnergy": 375.7,
      "ThermalConductivity": 35.9,
      "ElectronAffinity": 45.505,
      "AbundanceCrust": 3,
      "AbundanceUniverse": 8e-8,
      "Discovery": 1860,
      "Radioactive": 0,
      "DiscoveredBy": "R. Bunsen, R. Kirchhoff"
    },
    {
      "AtomicNumber": 56,
      "Symbol": "Ba",
      "EnglishName": "Barium",
      "Group": 2,
      "Period": 6,
      "Block": "s",
      "Category": 2,
      "AtomicMass": 137.327,
      "Configuration": "[Xe] 6s2",
      "ShellConfiguration": "2,8,18,18,8,2,",
      "StandardState": 2,
      "Density": 3.594,
      "MeltingPoint": 1000,
      "BoilingPoint": 2170,
      "HeatCapacity": 0.204,
      "HeatOfFusion": 7.12,
      "HeatOfVaporization": 140.3,
      "AtomicRadius": 253,
      "CovalentRadius": 198,
      "VanDerWaalsRadius": 268,
      "Electronegativity": 0.89,
      "OxidationStates": 2,
      "IonizationEnergy": 502.9,
      "ThermalConductivity": 18.4,
      "ElectronAffinity": 13.954,
      "AbundanceCrust": 425,
      "AbundanceUniverse": 0.000001,
      "Discovery": 1772,
      "Radioactive": 0,
      "DiscoveredBy": "W. Scheele"
    },
    {
      "AtomicNumber": 57,
      "Symbol": "La",
      "EnglishName": "Lanthanum",
      "Group": 3,
      "Period": 6,
      "Block": "d",
      "Category": 8,
      "AtomicMass": 138.90547,
      "Configuration": "[Xe] 5d1 6s2",
      "ShellConfiguration": "2,8,18,18,9,2,",
      "StandardState": 2,
      "Density": 6.145,
      "MeltingPoint": 1193,
      "BoilingPoint": 3737,
      "HeatCapacity": 0.195,
      "HeatOfFusion": 6.2,
      "HeatOfVaporization": 400,
      "AtomicRadius": 195,
      "CovalentRadius": 169,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.1,
      "OxidationStates": 3,
      "IonizationEnergy": 538.1,
      "ThermalConductivity": 13.4,
      "ElectronAffinity": 45.3,
      "AbundanceCrust": 39,
      "AbundanceUniverse": 2e-7,
      "Discovery": 1838,
      "Radioactive": 0,
      "DiscoveredBy": "G. Mosander"
    },
    {
      "AtomicNumber": 58,
      "Symbol": "Ce",
      "EnglishName": "Cerium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 140.116,
      "Configuration": "[Xe] 4f1 5d1 6s2",
      "ShellConfiguration": "2,8,18,19,9,2,",
      "StandardState": 2,
      "Density": 6.77,
      "MeltingPoint": 1068,
      "BoilingPoint": 3716,
      "HeatCapacity": 0.192,
      "HeatOfFusion": 5.46,
      "HeatOfVaporization": 398,
      "AtomicRadius": 158,
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.12,
      "OxidationStates": "3,4",
      "IonizationEnergy": 534.4,
      "ThermalConductivity": 11.3,
      "ElectronAffinity": 62.75,
      "AbundanceCrust": 66.5,
      "AbundanceUniverse": 0.000001,
      "Discovery": 1803,
      "Radioactive": 0,
      "DiscoveredBy": "H. Klaproth, J. Berzelius, W. Hisinger"
    },
    {
      "AtomicNumber": 59,
      "Symbol": "Pr",
      "EnglishName": "Praseodymium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 140.90766,
      "Configuration": "[Xe] 4f3 6s2",
      "ShellConfiguration": "2,8,18,21,8,2,",
      "StandardState": 2,
      "Density": 6.773,
      "MeltingPoint": 1208,
      "BoilingPoint": 3793,
      "HeatCapacity": 0.193,
      "HeatOfFusion": 6.89,
      "HeatOfVaporization": 331,
      "AtomicRadius": 247,
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.13,
      "OxidationStates": 3,
      "IonizationEnergy": 527,
      "ThermalConductivity": 12.5,
      "ElectronAffinity": 93,
      "AbundanceCrust": 9.2,
      "AbundanceUniverse": 2e-7,
      "Discovery": 1885,
      "Radioactive": 0,
      "DiscoveredBy": "C. A. von Welsbach"
    },
    {
      "AtomicNumber": 60,
      "Symbol": "Nd",
      "EnglishName": "Neodymium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 144.242,
      "Configuration": "[Xe] 4f4 6s2",
      "ShellConfiguration": "2,8,18,22,8,2,",
      "StandardState": 2,
      "Density": 7.007,
      "MeltingPoint": 1297,
      "BoilingPoint": 3347,
      "HeatCapacity": 0.19,
      "HeatOfFusion": 7.14,
      "HeatOfVaporization": 289,
      "AtomicRadius": 206,
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.14,
      "OxidationStates": 3,
      "IonizationEnergy": 533.1,
      "ThermalConductivity": 16.5,
      "ElectronAffinity": 184.87,
      "AbundanceCrust": 41.5,
      "AbundanceUniverse": 0.000001,
      "Discovery": 1885,
      "Radioactive": 0,
      "DiscoveredBy": "C. A. von Welsbach"
    },
    {
      "AtomicNumber": 61,
      "Symbol": "Pm",
      "EnglishName": "Promethium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 145,
      "Configuration": "[Xe] 4f5 6s2",
      "ShellConfiguration": "2,8,18,23,8,2,",
      "StandardState": 2,
      "Density": 7.26,
      "MeltingPoint": 1315,
      "BoilingPoint": 3273,
      "HeatCapacity": "",
      "HeatOfFusion": 7.13,
      "HeatOfVaporization": 289,
      "AtomicRadius": 205,
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.13,
      "OxidationStates": 3,
      "IonizationEnergy": 540,
      "ThermalConductivity": 17.9,
      "ElectronAffinity": 12.45,
      "AbundanceCrust": 2e-19,
      "AbundanceUniverse": "",
      "Discovery": 1942,
      "Radioactive": 1,
      "DiscoveredBy": "S. Wu, E.G. Segrè,d H. Bethe"
    },
    {
      "AtomicNumber": 62,
      "Symbol": "Sm",
      "EnglishName": "Samarium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 150.36,
      "Configuration": "[Xe] 4f6 6s2",
      "ShellConfiguration": "2,8,18,24,8,2,",
      "StandardState": 2,
      "Density": 7.52,
      "MeltingPoint": 1345,
      "BoilingPoint": 2067,
      "HeatCapacity": 0.197,
      "HeatOfFusion": 8.62,
      "HeatOfVaporization": 192,
      "AtomicRadius": 238,
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.17,
      "OxidationStates": 3,
      "IonizationEnergy": 544.5,
      "ThermalConductivity": 13.3,
      "ElectronAffinity": 15.63,
      "AbundanceCrust": 7.05,
      "AbundanceUniverse": 5e-7,
      "Discovery": 1879,
      "Radioactive": 0,
      "DiscoveredBy": "P.E.L. de Boisbaudran"
    },
    {
      "AtomicNumber": 63,
      "Symbol": "Eu",
      "EnglishName": "Europium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 151.964,
      "Configuration": "[Xe] 4f7 6s2",
      "ShellConfiguration": "2,8,18,25,8,2,",
      "StandardState": 2,
      "Density": 5.243,
      "MeltingPoint": 1099,
      "BoilingPoint": 1802,
      "HeatCapacity": 0.182,
      "HeatOfFusion": 9.21,
      "HeatOfVaporization": 176,
      "AtomicRadius": 231,
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.2,
      "OxidationStates": "2,3",
      "IonizationEnergy": 547.1,
      "ThermalConductivity": 13.9,
      "ElectronAffinity": 83.36,
      "AbundanceCrust": 2,
      "AbundanceUniverse": 5e-8,
      "Discovery": 1896,
      "Radioactive": 0,
      "DiscoveredBy": "E.-A. Demarçay"
    },
    {
      "AtomicNumber": 64,
      "Symbol": "Gd",
      "EnglishName": "Gadolinium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 157.25,
      "Configuration": "[Xe] 4f7 5d1 6s2",
      "ShellConfiguration": "2,8,18,25,9,2,",
      "StandardState": 2,
      "Density": 7.895,
      "MeltingPoint": 1585,
      "BoilingPoint": 3546,
      "HeatCapacity": 0.236,
      "HeatOfFusion": 10.05,
      "HeatOfVaporization": 301.3,
      "AtomicRadius": 233,
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.2,
      "OxidationStates": 3,
      "IonizationEnergy": 593.4,
      "ThermalConductivity": 10.6,
      "ElectronAffinity": 13.22,
      "AbundanceCrust": 6.2,
      "AbundanceUniverse": 2e-7,
      "Discovery": 1880,
      "Radioactive": 0,
      "DiscoveredBy": "J. C. G. de Marignac"
    },
    {
      "AtomicNumber": 65,
      "Symbol": "Tb",
      "EnglishName": "Terbium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 158.92535,
      "Configuration": "[Xe] 4f9 6s2",
      "ShellConfiguration": "2,8,18,27,8,2,",
      "StandardState": 2,
      "Density": 8.229,
      "MeltingPoint": 1629,
      "BoilingPoint": 3503,
      "HeatCapacity": 0.182,
      "HeatOfFusion": 10.15,
      "HeatOfVaporization": 391,
      "AtomicRadius": 225,
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.2,
      "OxidationStates": 3,
      "IonizationEnergy": 565.8,
      "ThermalConductivity": 11.1,
      "ElectronAffinity": 112.4,
      "AbundanceCrust": 1.2,
      "AbundanceUniverse": 5e-8,
      "Discovery": 1843,
      "Radioactive": 0,
      "DiscoveredBy": "G. Mosander"
    },
    {
      "AtomicNumber": 66,
      "Symbol": "Dy",
      "EnglishName": "Dysprosium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 162.5,
      "Configuration": "[Xe] 4f10 6s2",
      "ShellConfiguration": "2,8,18,28,8,2,",
      "StandardState": 2,
      "Density": 8.55,
      "MeltingPoint": 1680,
      "BoilingPoint": 2840,
      "HeatCapacity": 0.17,
      "HeatOfFusion": 11.06,
      "HeatOfVaporization": 280,
      "AtomicRadius": 228,
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.22,
      "OxidationStates": 3,
      "IonizationEnergy": 573,
      "ThermalConductivity": 10.7,
      "ElectronAffinity": 33.96,
      "AbundanceCrust": 5.2,
      "AbundanceUniverse": 2e-7,
      "Discovery": 1886,
      "Radioactive": 0,
      "DiscoveredBy": "P.E.L. de Boisbaudran"
    },
    {
      "AtomicNumber": 67,
      "Symbol": "Ho",
      "EnglishName": "Holmium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 164.93033,
      "Configuration": "[Xe] 4f11 6s2",
      "ShellConfiguration": "2,8,18,29,8,2,",
      "StandardState": 2,
      "Density": 8.795,
      "MeltingPoint": 1734,
      "BoilingPoint": 2993,
      "HeatCapacity": 0.165,
      "HeatOfFusion": 17,
      "HeatOfVaporization": 251,
      "AtomicRadius": 226,
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.23,
      "OxidationStates": 3,
      "IonizationEnergy": 581,
      "ThermalConductivity": 16.2,
      "ElectronAffinity": 32.61,
      "AbundanceCrust": 1.3,
      "AbundanceUniverse": 5e-8,
      "Discovery": 1878,
      "Radioactive": 0,
      "DiscoveredBy": "J.-L. Soret"
    },
    {
      "AtomicNumber": 68,
      "Symbol": "Er",
      "EnglishName": "Erbium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 167.259,
      "Configuration": "[Xe] 4f12 6s2",
      "ShellConfiguration": "2,8,18,30,8,2,",
      "StandardState": 2,
      "Density": 9.066,
      "MeltingPoint": 1802,
      "BoilingPoint": 3141,
      "HeatCapacity": 0.168,
      "HeatOfFusion": 19.9,
      "HeatOfVaporization": 280,
      "AtomicRadius": 226,
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.24,
      "OxidationStates": 3,
      "IonizationEnergy": 589.3,
      "ThermalConductivity": 14.5,
      "ElectronAffinity": 30.1,
      "AbundanceCrust": 3.5,
      "AbundanceUniverse": 2e-7,
      "Discovery": 1843,
      "Radioactive": 0,
      "DiscoveredBy": "G. Mosander"
    },
    {
      "AtomicNumber": 69,
      "Symbol": "Tm",
      "EnglishName": "Thulium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 168.93422,
      "Configuration": "[Xe] 4f13 6s2",
      "ShellConfiguration": "2,8,18,31,8,2,",
      "StandardState": 2,
      "Density": 9.321,
      "MeltingPoint": 1818,
      "BoilingPoint": 2223,
      "HeatCapacity": 0.16,
      "HeatOfFusion": 16.84,
      "HeatOfVaporization": 191,
      "AtomicRadius": 222,
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.25,
      "OxidationStates": 3,
      "IonizationEnergy": 596.7,
      "ThermalConductivity": 16.9,
      "ElectronAffinity": 99,
      "AbundanceCrust": 0.52,
      "AbundanceUniverse": 1e-8,
      "Discovery": 1879,
      "Radioactive": 0,
      "DiscoveredBy": "T. Cleve"
    },
    {
      "AtomicNumber": 70,
      "Symbol": "Yb",
      "EnglishName": "Ytterbium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 173.045,
      "Configuration": "[Xe] 4f14 6s2",
      "ShellConfiguration": "2,8,18,32,8,2,",
      "StandardState": 2,
      "Density": 6.965,
      "MeltingPoint": 1097,
      "BoilingPoint": 1469,
      "HeatCapacity": 0.155,
      "HeatOfFusion": 7.66,
      "HeatOfVaporization": 129,
      "AtomicRadius": 222,
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.1,
      "OxidationStates": 3,
      "IonizationEnergy": 603.4,
      "ThermalConductivity": 38.5,
      "ElectronAffinity": -1.93,
      "AbundanceCrust": 3.2,
      "AbundanceUniverse": 2e-7,
      "Discovery": 1878,
      "Radioactive": 0,
      "DiscoveredBy": "J.C.G. de Marignac"
    },
    {
      "AtomicNumber": 71,
      "Symbol": "Lu",
      "EnglishName": "Lutetium",
      "Group": 0,
      "Period": 6,
      "Block": "f",
      "Category": 8,
      "AtomicMass": 174.9668,
      "Configuration": "[Xe] 4f14 5d1 6s2",
      "ShellConfiguration": "2,8,18,32,9,2,",
      "StandardState": 2,
      "Density": 9.84,
      "MeltingPoint": 1925,
      "BoilingPoint": 3675,
      "HeatCapacity": 0.154,
      "HeatOfFusion": 22,
      "HeatOfVaporization": 414,
      "AtomicRadius": 217,
      "CovalentRadius": 160,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.27,
      "OxidationStates": 3,
      "IonizationEnergy": 523.5,
      "ThermalConductivity": 16.4,
      "ElectronAffinity": 33.4,
      "AbundanceCrust": 0.8,
      "AbundanceUniverse": 1e-8,
      "Discovery": 1906,
      "Radioactive": 0,
      "DiscoveredBy": "C. A. von Welsbach, G. Urbain"
    },
    {
      "AtomicNumber": 72,
      "Symbol": "Hf",
      "EnglishName": "Hafnium",
      "Group": 4,
      "Period": 6,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 178.49,
      "Configuration": "[Xe] 4f14 5d2 6s2",
      "ShellConfiguration": "2,8,18,32,10,2,",
      "StandardState": 2,
      "Density": 13.31,
      "MeltingPoint": 2506,
      "BoilingPoint": 4876,
      "HeatCapacity": 0.144,
      "HeatOfFusion": 27.2,
      "HeatOfVaporization": 648,
      "AtomicRadius": 208,
      "CovalentRadius": 150,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.3,
      "OxidationStates": 4,
      "IonizationEnergy": 658.5,
      "ThermalConductivity": 23,
      "ElectronAffinity": 1.64,
      "AbundanceCrust": 3,
      "AbundanceUniverse": 7e-8,
      "Discovery": 1922,
      "Radioactive": 0,
      "DiscoveredBy": "D. Coster, G. von Hevesy"
    },
    {
      "AtomicNumber": 73,
      "Symbol": "Ta",
      "EnglishName": "Tantalum",
      "Group": 5,
      "Period": 6,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 180.94788,
      "Configuration": "[Xe] 4f14 5d3 6s2",
      "ShellConfiguration": "2,8,18,32,11,2,",
      "StandardState": 2,
      "Density": 16.654,
      "MeltingPoint": 3290,
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      "HeatOfFusion": 36.57,
      "HeatOfVaporization": 732.8,
      "AtomicRadius": 200,
      "CovalentRadius": 138,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.5,
      "OxidationStates": 5,
      "IonizationEnergy": 761,
      "ThermalConductivity": 57.5,
      "ElectronAffinity": 31,
      "AbundanceCrust": 2,
      "AbundanceUniverse": 8e-9,
      "Discovery": 1802,
      "Radioactive": 0,
      "DiscoveredBy": "G. Ekeberg"
    },
    {
      "AtomicNumber": 74,
      "Symbol": "W",
      "EnglishName": "Tungsten",
      "Group": 6,
      "Period": 6,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 183.84,
      "Configuration": "[Xe] 4f14 5d4 6s2",
      "ShellConfiguration": "2,8,18,32,12,2,",
      "StandardState": 2,
      "Density": 19.25,
      "MeltingPoint": 3695,
      "BoilingPoint": 5828,
      "HeatCapacity": 0.132,
      "HeatOfFusion": 52.31,
      "HeatOfVaporization": 806.7,
      "AtomicRadius": 193,
      "CovalentRadius": 146,
      "VanDerWaalsRadius": "",
      "Electronegativity": 2.36,
      "OxidationStates": "2,3,4,5,6",
      "IonizationEnergy": 770,
      "ThermalConductivity": 173,
      "ElectronAffinity": 78.76,
      "AbundanceCrust": 1.3,
      "AbundanceUniverse": 5e-8,
      "Discovery": 1781,
      "Radioactive": 0,
      "DiscoveredBy": "W. Scheele"
    },
    {
      "AtomicNumber": 75,
      "Symbol": "Re",
      "EnglishName": "Rhenium",
      "Group": 7,
      "Period": 6,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 186.207,
      "Configuration": "[Xe] 4f14 5d5 6s2",
      "ShellConfiguration": "2,8,18,32,13,2,",
      "StandardState": 2,
      "Density": 21.02,
      "MeltingPoint": 3459,
      "BoilingPoint": 5869,
      "HeatCapacity": 0.137,
      "HeatOfFusion": 60.43,
      "HeatOfVaporization": 704,
      "AtomicRadius": 188,
      "CovalentRadius": 159,
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.9,
      "OxidationStates": "2,4,6,7",
      "IonizationEnergy": 760,
      "ThermalConductivity": 48,
      "ElectronAffinity": 5.8273,
      "AbundanceCrust": 0.0007,
      "AbundanceUniverse": 2e-8,
      "Discovery": 1908,
      "Radioactive": 0,
      "DiscoveredBy": "M. Ogawa"
    },
    {
      "AtomicNumber": 76,
      "Symbol": "Os",
      "EnglishName": "Osmium",
      "Group": 8,
      "Period": 6,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 190.23,
      "Configuration": "[Xe] 4f14 5d6 6s2",
      "ShellConfiguration": "2,8,18,32,14,2,",
      "StandardState": 2,
      "Density": 22.61,
      "MeltingPoint": 3306,
      "BoilingPoint": 5285,
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      "HeatOfFusion": 57.85,
      "HeatOfVaporization": 678,
      "AtomicRadius": 185,
      "CovalentRadius": 128,
      "VanDerWaalsRadius": "",
      "Electronegativity": 2.2,
      "OxidationStates": "2,3,4,6,8",
      "IonizationEnergy": 840,
      "ThermalConductivity": 87.6,
      "ElectronAffinity": 106.1,
      "AbundanceCrust": 0.002,
      "AbundanceUniverse": 3e-7,
      "Discovery": 1803,
      "Radioactive": 0,
      "DiscoveredBy": "S. Tennant"
    },
    {
      "AtomicNumber": 77,
      "Symbol": "Ir",
      "EnglishName": "Iridium",
      "Group": 9,
      "Period": 6,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 192.217,
      "Configuration": "[Xe] 4f14 5d7 6s2",
      "ShellConfiguration": "2,8,18,32,15,2,",
      "StandardState": 2,
      "Density": 22.56,
      "MeltingPoint": 2719,
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      "HeatOfFusion": 41.12,
      "HeatOfVaporization": 564,
      "AtomicRadius": 180,
      "CovalentRadius": 137,
      "VanDerWaalsRadius": "",
      "Electronegativity": 2.2,
      "OxidationStates": "2,3,4,6",
      "IonizationEnergy": 880,
      "ThermalConductivity": 147,
      "ElectronAffinity": 150.94,
      "AbundanceCrust": 0.001,
      "AbundanceUniverse": 2e-7,
      "Discovery": 1803,
      "Radioactive": 0,
      "DiscoveredBy": "S. Tennant"
    },
    {
      "AtomicNumber": 78,
      "Symbol": "Pt",
      "EnglishName": "Platinum",
      "Group": 10,
      "Period": 6,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 195.084,
      "Configuration": "[Xe] 4f14 5d9 6s1",
      "ShellConfiguration": "2,8,18,32,17,1,",
      "StandardState": 2,
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      "HeatCapacity": 0.133,
      "HeatOfFusion": 22.17,
      "HeatOfVaporization": 510,
      "AtomicRadius": 177,
      "CovalentRadius": 128,
      "VanDerWaalsRadius": 175,
      "Electronegativity": 2.28,
      "OxidationStates": "2,4",
      "IonizationEnergy": 870,
      "ThermalConductivity": 71.6,
      "ElectronAffinity": 205.041,
      "AbundanceCrust": 0.005,
      "AbundanceUniverse": 5e-7,
      "Discovery": 1735,
      "Radioactive": 0,
      "DiscoveredBy": "A. de Ulloa"
    },
    {
      "AtomicNumber": 79,
      "Symbol": "Au",
      "EnglishName": "Gold",
      "Group": 11,
      "Period": 6,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 196.966569,
      "Configuration": "[Xe] 4f14 5d10 6s1",
      "ShellConfiguration": "2,8,18,32,18,1,",
      "StandardState": 2,
      "Density": 19.282,
      "MeltingPoint": 1337.33,
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      "HeatOfFusion": 12.55,
      "HeatOfVaporization": 342,
      "AtomicRadius": 174,
      "CovalentRadius": 144,
      "VanDerWaalsRadius": 166,
      "Electronegativity": 2.54,
      "OxidationStates": "1,3",
      "IonizationEnergy": 890.1,
      "ThermalConductivity": 318,
      "ElectronAffinity": 222.747,
      "AbundanceCrust": 0.004,
      "AbundanceUniverse": 6e-8,
      "Discovery": -6000,
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      "DiscoveredBy": ""
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    {
      "AtomicNumber": 80,
      "Symbol": "Hg",
      "EnglishName": "Mercury",
      "Group": 12,
      "Period": 6,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 200.592,
      "Configuration": "[Xe] 4f14 5d10 6s2",
      "ShellConfiguration": "2,8,18,32,18,2,",
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      "MeltingPoint": 234.43,
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      "HeatOfVaporization": 59.11,
      "AtomicRadius": 171,
      "CovalentRadius": 149,
      "VanDerWaalsRadius": 155,
      "Electronegativity": 2,
      "OxidationStates": "1,2",
      "IonizationEnergy": 1007.1,
      "ThermalConductivity": 8.3,
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      "AbundanceCrust": 0.085,
      "AbundanceUniverse": 1e-7,
      "Discovery": -2000,
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      "DiscoveredBy": ""
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    {
      "AtomicNumber": 81,
      "Symbol": "Tl",
      "EnglishName": "Thallium",
      "Group": 13,
      "Period": 6,
      "Block": "p",
      "Category": 4,
      "AtomicMass": 204.38,
      "Configuration": "[Xe] 4f14 5d10 6s2 6p1",
      "ShellConfiguration": "2,8,18,32,18,3,",
      "StandardState": 2,
      "Density": 11.85,
      "MeltingPoint": 577,
      "BoilingPoint": 1746,
      "HeatCapacity": 0.129,
      "HeatOfFusion": 4.14,
      "HeatOfVaporization": 165,
      "AtomicRadius": 156,
      "CovalentRadius": 148,
      "VanDerWaalsRadius": 196,
      "Electronegativity": 1.62,
      "OxidationStates": "1,3",
      "IonizationEnergy": 589.4,
      "ThermalConductivity": 46.1,
      "ElectronAffinity": 36.4,
      "AbundanceCrust": 0.85,
      "AbundanceUniverse": 5e-8,
      "Discovery": 1861,
      "Radioactive": 0,
      "DiscoveredBy": "W. Crookes"
    },
    {
      "AtomicNumber": 82,
      "Symbol": "Pb",
      "EnglishName": "Lead",
      "Group": 14,
      "Period": 6,
      "Block": "p",
      "Category": 4,
      "AtomicMass": 207.2,
      "Configuration": "[Xe] 4f14 5d10 6s2 6p2",
      "ShellConfiguration": "2,8,18,32,18,4,",
      "StandardState": 2,
      "Density": 11.342,
      "MeltingPoint": 600.61,
      "BoilingPoint": 2022,
      "HeatCapacity": 0.129,
      "HeatOfFusion": 4.77,
      "HeatOfVaporization": 179.5,
      "AtomicRadius": 154,
      "CovalentRadius": 147,
      "VanDerWaalsRadius": 202,
      "Electronegativity": 1.87,
      "OxidationStates": "2,4",
      "IonizationEnergy": 715.6,
      "ThermalConductivity": 35.3,
      "ElectronAffinity": 34.4204,
      "AbundanceCrust": 14,
      "AbundanceUniverse": 0.000001,
      "Discovery": -7000,
      "Radioactive": 0,
      "DiscoveredBy": ""
    },
    {
      "AtomicNumber": 83,
      "Symbol": "Bi",
      "EnglishName": "Bismuth",
      "Group": 15,
      "Period": 6,
      "Block": "p",
      "Category": 4,
      "AtomicMass": 208.9804,
      "Configuration": "[Xe] 4f14 5d10 6s2 6p3",
      "ShellConfiguration": "2,8,18,32,18,5,",
      "StandardState": 2,
      "Density": 9.807,
      "MeltingPoint": 544.7,
      "BoilingPoint": 1837,
      "HeatCapacity": 0.122,
      "HeatOfFusion": 11.3,
      "HeatOfVaporization": 179,
      "AtomicRadius": 143,
      "CovalentRadius": 146,
      "VanDerWaalsRadius": 207,
      "Electronegativity": 2.02,
      "OxidationStates": "3,5",
      "IonizationEnergy": 703,
      "ThermalConductivity": 7.97,
      "ElectronAffinity": 90.924,
      "AbundanceCrust": 0.009,
      "AbundanceUniverse": 7e-8,
      "Discovery": 1753,
      "Radioactive": 0,
      "DiscoveredBy": "C.F. Geoffroy"
    },
    {
      "AtomicNumber": 84,
      "Symbol": "Po",
      "EnglishName": "Polonium",
      "Group": 16,
      "Period": 6,
      "Block": "p",
      "Category": 5,
      "AtomicMass": 209,
      "Configuration": "[Xe] 4f14 5d10 6s2 6p4",
      "ShellConfiguration": "2,8,18,32,18,6,",
      "StandardState": 2,
      "Density": 9.32,
      "MeltingPoint": 527,
      "BoilingPoint": 1235,
      "HeatCapacity": "",
      "HeatOfFusion": 13,
      "HeatOfVaporization": 102.91,
      "AtomicRadius": 135,
      "CovalentRadius": "",
      "VanDerWaalsRadius": 197,
      "Electronegativity": 2,
      "OxidationStates": "-2,2,4,6",
      "IonizationEnergy": 812.1,
      "ThermalConductivity": "",
      "ElectronAffinity": 183.3,
      "AbundanceCrust": 2e-10,
      "AbundanceUniverse": "",
      "Discovery": 1898,
      "Radioactive": 1,
      "DiscoveredBy": "P. Curie, M. Curie"
    },
    {
      "AtomicNumber": 85,
      "Symbol": "At",
      "EnglishName": "Astatine",
      "Group": 17,
      "Period": 6,
      "Block": "p",
      "Category": 6,
      "AtomicMass": 210,
      "Configuration": "[Xe] 4f14 5d10 6s2 6p5",
      "ShellConfiguration": "2,8,18,32,18,7,",
      "StandardState": 2,
      "Density": 7,
      "MeltingPoint": 575,
      "BoilingPoint": 610,
      "HeatCapacity": "",
      "HeatOfFusion": "",
      "HeatOfVaporization": 54.39,
      "AtomicRadius": 127,
      "CovalentRadius": "",
      "VanDerWaalsRadius": 202,
      "Electronegativity": 2.2,
      "OxidationStates": "-1,1,3,5,7",
      "IonizationEnergy": 899.003,
      "ThermalConductivity": 1.7,
      "ElectronAffinity": 221.9,
      "AbundanceCrust": 3e-20,
      "AbundanceUniverse": "",
      "Discovery": 1940,
      "Radioactive": 1,
      "DiscoveredBy": "R. Corson, R. MacKenzie, E. Segrè"
    },
    {
      "AtomicNumber": 86,
      "Symbol": "Rn",
      "EnglishName": "Radon",
      "Group": 18,
      "Period": 6,
      "Block": "p",
      "Category": 7,
      "AtomicMass": 222,
      "Configuration": "[Xe] 4f14 5d10 6s2 6p6",
      "ShellConfiguration": "2,8,18,32,18,8,",
      "StandardState": 0,
      "Density": 0.00973,
      "MeltingPoint": 202,
      "BoilingPoint": 211.3,
      "HeatCapacity": 0.094,
      "HeatOfFusion": 3.247,
      "HeatOfVaporization": 18.1,
      "AtomicRadius": 120,
      "CovalentRadius": 145,
      "VanDerWaalsRadius": 220,
      "Electronegativity": 2.2,
      "OxidationStates": "0,2,6",
      "IonizationEnergy": 1037,
      "ThermalConductivity": 0.00361,
      "ElectronAffinity": -70,
      "AbundanceCrust": 4e-13,
      "AbundanceUniverse": "",
      "Discovery": 1899,
      "Radioactive": 1,
      "DiscoveredBy": "E. Rutherford, R. B. Owens"
    },
    {
      "AtomicNumber": 87,
      "Symbol": "Fr",
      "EnglishName": "Francium",
      "Group": 1,
      "Period": 7,
      "Block": "s",
      "Category": 1,
      "AtomicMass": 223,
      "Configuration": "[Rn] 7s1",
      "ShellConfiguration": "2,8,18,32,18,8,1",
      "StandardState": 2,
      "Density": 1.87,
      "MeltingPoint": 300,
      "BoilingPoint": 950,
      "HeatCapacity": "",
      "HeatOfFusion": 2,
      "HeatOfVaporization": 65,
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": 348,
      "Electronegativity": 0.7,
      "OxidationStates": 1,
      "IonizationEnergy": 380,
      "ThermalConductivity": "",
      "ElectronAffinity": 46.89,
      "AbundanceCrust": 1e-18,
      "AbundanceUniverse": "",
      "Discovery": 1939,
      "Radioactive": 1,
      "DiscoveredBy": "M. Perey"
    },
    {
      "AtomicNumber": 88,
      "Symbol": "Ra",
      "EnglishName": "Radium",
      "Group": 2,
      "Period": 7,
      "Block": "s",
      "Category": 2,
      "AtomicMass": 226,
      "Configuration": "[Rn] 7s2",
      "ShellConfiguration": "2,8,18,32,18,8,2",
      "StandardState": 2,
      "Density": 5.5,
      "MeltingPoint": 973,
      "BoilingPoint": 2010,
      "HeatCapacity": 0.094,
      "HeatOfFusion": 8.5,
      "HeatOfVaporization": 113,
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": 283,
      "Electronegativity": 0.9,
      "OxidationStates": 2,
      "IonizationEnergy": 509.3,
      "ThermalConductivity": 18.6,
      "ElectronAffinity": 9.6485,
      "AbundanceCrust": 9e-7,
      "AbundanceUniverse": "",
      "Discovery": 1898,
      "Radioactive": 1,
      "DiscoveredBy": "P. Curie, M. Curie"
    },
    {
      "AtomicNumber": 89,
      "Symbol": "Ac",
      "EnglishName": "Actinium",
      "Group": 3,
      "Period": 7,
      "Block": "d",
      "Category": 9,
      "AtomicMass": 227,
      "Configuration": "[Rn] 6d1 7s2",
      "ShellConfiguration": "2,8,18,32,18,9,2",
      "StandardState": 2,
      "Density": 10.07,
      "MeltingPoint": 1323,
      "BoilingPoint": 3471,
      "HeatCapacity": 0.12,
      "HeatOfFusion": 14,
      "HeatOfVaporization": 400,
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.1,
      "OxidationStates": 3,
      "IonizationEnergy": 499,
      "ThermalConductivity": 12,
      "ElectronAffinity": 33.77,
      "AbundanceCrust": 5.5e-10,
      "AbundanceUniverse": "",
      "Discovery": 1902,
      "Radioactive": 1,
      "DiscoveredBy": "F. O. Giesel"
    },
    {
      "AtomicNumber": 90,
      "Symbol": "Th",
      "EnglishName": "Thorium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 232.0377,
      "Configuration": "[Rn] 6d2 7s2",
      "ShellConfiguration": "2,8,18,32,18,10,2",
      "StandardState": 2,
      "Density": 11.72,
      "MeltingPoint": 2115,
      "BoilingPoint": 5061,
      "HeatCapacity": 0.113,
      "HeatOfFusion": 13.81,
      "HeatOfVaporization": 514,
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.3,
      "OxidationStates": 4,
      "IonizationEnergy": 587,
      "ThermalConductivity": 54,
      "ElectronAffinity": 112.72,
      "AbundanceCrust": 9.6,
      "AbundanceUniverse": 4e-8,
      "Discovery": 1829,
      "Radioactive": 1,
      "DiscoveredBy": "J. Berzelius"
    },
    {
      "AtomicNumber": 91,
      "Symbol": "Pa",
      "EnglishName": "Protactinium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 231.03588,
      "Configuration": "[Rn] 5f2 6d1 7s2",
      "ShellConfiguration": "2,8,18,32,20,9,2",
      "StandardState": 2,
      "Density": 15.37,
      "MeltingPoint": 1841,
      "BoilingPoint": 4300,
      "HeatCapacity": "",
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      "HeatOfVaporization": 481,
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.5,
      "OxidationStates": 5,
      "IonizationEnergy": 568,
      "ThermalConductivity": 47,
      "ElectronAffinity": 53.03,
      "AbundanceCrust": 0.0000014,
      "AbundanceUniverse": "",
      "Discovery": 1913,
      "Radioactive": 1,
      "DiscoveredBy": "O. H. Göhring, K. Fajans"
    },
    {
      "AtomicNumber": 92,
      "Symbol": "U",
      "EnglishName": "Uranium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 238.02891,
      "Configuration": "[Rn] 5f3 6d1 7s2",
      "ShellConfiguration": "2,8,18,32,21,9,2",
      "StandardState": 2,
      "Density": 18.95,
      "MeltingPoint": 1405.3,
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      "HeatCapacity": 0.116,
      "HeatOfFusion": 9.14,
      "HeatOfVaporization": 417.1,
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": 186,
      "Electronegativity": 1.38,
      "OxidationStates": 6,
      "IonizationEnergy": 597.6,
      "ThermalConductivity": 27.5,
      "ElectronAffinity": 50.94,
      "AbundanceCrust": 2.7,
      "AbundanceUniverse": 2e-8,
      "Discovery": 1789,
      "Radioactive": 1,
      "DiscoveredBy": "H. Klaproth"
    },
    {
      "AtomicNumber": 93,
      "Symbol": "Np",
      "EnglishName": "Neptunium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 237,
      "Configuration": "[Rn] 5f4 6d1 7s2",
      "ShellConfiguration": "2,8,18,32,22,9,2",
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      "Density": 20.45,
      "MeltingPoint": 917,
      "BoilingPoint": 4273,
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      "HeatOfVaporization": 336,
      "AtomicRadius": "",
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      "VanDerWaalsRadius": "",
      "Electronegativity": 1.36,
      "OxidationStates": 5,
      "IonizationEnergy": 604.5,
      "ThermalConductivity": 6.3,
      "ElectronAffinity": 45.85,
      "AbundanceCrust": 3e-12,
      "AbundanceUniverse": "",
      "Discovery": 1940,
      "Radioactive": 1,
      "DiscoveredBy": "E.M. McMillan, H. Abelson"
    },
    {
      "AtomicNumber": 94,
      "Symbol": "Pu",
      "EnglishName": "Plutonium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 244,
      "Configuration": "[Rn] 5f6 7s2",
      "ShellConfiguration": "2,8,18,32,24,8,2",
      "StandardState": 2,
      "Density": 19.84,
      "MeltingPoint": 912.5,
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      "HeatCapacity": "",
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      "HeatOfVaporization": 333.5,
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.28,
      "OxidationStates": 4,
      "IonizationEnergy": 584.7,
      "ThermalConductivity": 6.74,
      "ElectronAffinity": -48.33,
      "AbundanceCrust": 3e-11,
      "AbundanceUniverse": "",
      "Discovery": 1941,
      "Radioactive": 1,
      "DiscoveredBy": "Glenn T. Seaborg, Arthur C. Wahl, W. Kennedy, E.M. McMillan"
    },
    {
      "AtomicNumber": 95,
      "Symbol": "Am",
      "EnglishName": "Americium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 243,
      "Configuration": "[Rn] 5f7 7s2",
      "ShellConfiguration": "2,8,18,32,25,8,2",
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      "Density": 13.69,
      "MeltingPoint": 1449,
      "BoilingPoint": 2880,
      "HeatCapacity": "",
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      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.13,
      "OxidationStates": 3,
      "IonizationEnergy": 578,
      "ThermalConductivity": 10,
      "ElectronAffinity": 9.93,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1944,
      "Radioactive": 1,
      "DiscoveredBy": "G. T. Seaborg, R. A. James, O. Morgan, A. Ghiorso"
    },
    {
      "AtomicNumber": 96,
      "Symbol": "Cm",
      "EnglishName": "Curium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 247,
      "Configuration": "[Rn] 5f7 6d1 7s2",
      "ShellConfiguration": "2,8,18,32,25,9,2",
      "StandardState": 2,
      "Density": 13.51,
      "MeltingPoint": 1613,
      "BoilingPoint": 3383,
      "HeatCapacity": "",
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      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.28,
      "OxidationStates": 3,
      "IonizationEnergy": 581,
      "ThermalConductivity": "",
      "ElectronAffinity": 27.17,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1944,
      "Radioactive": 1,
      "DiscoveredBy": "G. T. Seaborg, R. A. James, A. Ghiorso"
    },
    {
      "AtomicNumber": 97,
      "Symbol": "Bk",
      "EnglishName": "Berkelium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 247,
      "Configuration": "[Rn] 5f9 7s2",
      "ShellConfiguration": "2,8,18,32,27,8,2",
      "StandardState": 2,
      "Density": 14.79,
      "MeltingPoint": 1259,
      "BoilingPoint": 2900,
      "HeatCapacity": "",
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      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.3,
      "OxidationStates": 3,
      "IonizationEnergy": 601,
      "ThermalConductivity": 10,
      "ElectronAffinity": -165.24,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1949,
      "Radioactive": 1,
      "DiscoveredBy": "S. G. Thompson, A. Ghiorso, G. T. Seaborg (UC Berkeley)"
    },
    {
      "AtomicNumber": 98,
      "Symbol": "Cf",
      "EnglishName": "Californium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 251,
      "Configuration": "[Rn] 5f10 7s2",
      "ShellConfiguration": "2,8,18,32,28,8,2",
      "StandardState": 2,
      "Density": 15.1,
      "MeltingPoint": 1173,
      "BoilingPoint": 1743,
      "HeatCapacity": "",
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      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.3,
      "OxidationStates": 3,
      "IonizationEnergy": 608,
      "ThermalConductivity": "",
      "ElectronAffinity": -97.31,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1950,
      "Radioactive": 1,
      "DiscoveredBy": "S. G. Thompson, K. Street Jr., A. Ghiorso, G. T. Seaborg (UC Berkeley)"
    },
    {
      "AtomicNumber": 99,
      "Symbol": "Es",
      "EnglishName": "Einsteinium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 252,
      "Configuration": "[Rn] 5f11 7s2",
      "ShellConfiguration": "2,8,18,32,29,8,2",
      "StandardState": 2,
      "Density": 8.84,
      "MeltingPoint": 1133,
      "BoilingPoint": 1269,
      "HeatCapacity": "",
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      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
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      "Electronegativity": 1.3,
      "OxidationStates": 3,
      "IonizationEnergy": 619,
      "ThermalConductivity": "",
      "ElectronAffinity": -28.6,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1952,
      "Radioactive": 1,
      "DiscoveredBy": "A. Ghiorso et al. (Argonne Laboratory, Los Alamos Laboratory, UC Berkeley)"
    },
    {
      "AtomicNumber": 100,
      "Symbol": "Fm",
      "EnglishName": "Fermium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 257,
      "Configuration": "[Rn] 5f12 7s2",
      "ShellConfiguration": "2,8,18,32,30,8,2",
      "StandardState": 2,
      "Density": 9.7,
      "MeltingPoint": 1125,
      "BoilingPoint": "",
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      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.3,
      "OxidationStates": 3,
      "IonizationEnergy": 627,
      "ThermalConductivity": "",
      "ElectronAffinity": 33.96,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1952,
      "Radioactive": 1,
      "DiscoveredBy": "A. Ghiorso et al. (Argonne Laboratory, Los Alamos Laboratory, UC Berkeley)"
    },
    {
      "AtomicNumber": 101,
      "Symbol": "Md",
      "EnglishName": "Mendelevium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 258,
      "Configuration": "[Rn] 5f13 7s2",
      "ShellConfiguration": "2,8,18,32,31,8,2",
      "StandardState": 2,
      "Density": 10.3,
      "MeltingPoint": 1100,
      "BoilingPoint": "",
      "HeatCapacity": "",
      "HeatOfFusion": "",
      "HeatOfVaporization": "",
      "AtomicRadius": "",
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      "VanDerWaalsRadius": "",
      "Electronegativity": 1.3,
      "OxidationStates": 3,
      "IonizationEnergy": 635,
      "ThermalConductivity": "",
      "ElectronAffinity": 93.91,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1955,
      "Radioactive": 1,
      "DiscoveredBy": "A. Ghiorso, G. Harvey, R. Choppin, S. G. Thompson, G. T. Seaborg (Berkeley Radiation Laboratory)"
    },
    {
      "AtomicNumber": 102,
      "Symbol": "No",
      "EnglishName": "Nobelium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 259,
      "Configuration": "[Rn] 5f14 7s2",
      "ShellConfiguration": "2,8,18,32,32,8,2",
      "StandardState": 2,
      "Density": 9.9,
      "MeltingPoint": 1100,
      "BoilingPoint": "",
      "HeatCapacity": "",
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      "HeatOfVaporization": "",
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      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.3,
      "OxidationStates": 2,
      "IonizationEnergy": 642,
      "ThermalConductivity": "",
      "ElectronAffinity": -223.22,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1966,
      "Radioactive": 1,
      "DiscoveredBy": "E. D. Donets, V. A. Shchegolev, V. A. Ermakov (JINR Dubna)"
    },
    {
      "AtomicNumber": 103,
      "Symbol": "Lr",
      "EnglishName": "Lawrencium",
      "Group": 0,
      "Period": 7,
      "Block": "f",
      "Category": 9,
      "AtomicMass": 266,
      "Configuration": "[Rn] 5f14 7s2 7p1",
      "ShellConfiguration": "2,8,18,32,32,8,3",
      "StandardState": 2,
      "Density": 15.6,
      "MeltingPoint": 1900,
      "BoilingPoint": "",
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      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": 1.3,
      "OxidationStates": 3,
      "IonizationEnergy": 470,
      "ThermalConductivity": "",
      "ElectronAffinity": -30.04,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1961,
      "Radioactive": 1,
      "DiscoveredBy": "A. Ghiorso, T. Sikkeland, E. Larsh, M. Latimer (Berkeley Radiation Laboratory)"
    },
    {
      "AtomicNumber": 104,
      "Symbol": "Rf",
      "EnglishName": "Rutherfordium",
      "Group": 4,
      "Period": 7,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 267,
      "Configuration": "[Rn] 5f14 6d2 7s2",
      "ShellConfiguration": "2,8,18,32,32,10,2",
      "StandardState": 2,
      "Density": 23.2,
      "MeltingPoint": 2400,
      "BoilingPoint": 5800,
      "HeatCapacity": "",
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      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": "",
      "OxidationStates": "3,4",
      "IonizationEnergy": 580,
      "ThermalConductivity": "",
      "ElectronAffinity": "",
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1969,
      "Radioactive": 1,
      "DiscoveredBy": "A. Ghiorso et al. (Berkeley Radiation Laboratory), I. Zvara et al. (JINR Dubna)"
    },
    {
      "AtomicNumber": 105,
      "Symbol": "Db",
      "EnglishName": "Dubnium",
      "Group": 5,
      "Period": 7,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 268,
      "Configuration": "[Rn] 5f14 6d3 7s2",
      "ShellConfiguration": "2,8,18,32,32,11,2",
      "StandardState": 2,
      "Density": 29.3,
      "MeltingPoint": "",
      "BoilingPoint": "",
      "HeatCapacity": "",
      "HeatOfFusion": "",
      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
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      "Electronegativity": "",
      "OxidationStates": 5,
      "IonizationEnergy": "",
      "ThermalConductivity": "",
      "ElectronAffinity": "",
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1970,
      "Radioactive": 1,
      "DiscoveredBy": "A. Ghiorso et al. (Berkeley Radiation Laboratory), V. A. Druin et al. (JINR Dubna)"
    },
    {
      "AtomicNumber": 106,
      "Symbol": "Sg",
      "EnglishName": "Seaborgium",
      "Group": 6,
      "Period": 7,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 269,
      "Configuration": "[Rn] 5f14 6d4 7s2",
      "ShellConfiguration": "2,8,18,32,32,12,2",
      "StandardState": 2,
      "Density": 35,
      "MeltingPoint": "",
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      "HeatCapacity": "",
      "HeatOfFusion": "",
      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": "",
      "OxidationStates": "4,6",
      "IonizationEnergy": "",
      "ThermalConductivity": "",
      "ElectronAffinity": "",
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1974,
      "Radioactive": 1,
      "DiscoveredBy": "A. Ghiorso et al. (Berkeley Radiation Laboratory)"
    },
    {
      "AtomicNumber": 107,
      "Symbol": "Bh",
      "EnglishName": "Bohrium",
      "Group": 7,
      "Period": 7,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 270,
      "Configuration": "[Rn] 5f14 6d5 7s2",
      "ShellConfiguration": "2,8,18,32,32,13,2",
      "StandardState": 2,
      "Density": 37.1,
      "MeltingPoint": "",
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      "HeatOfFusion": "",
      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": "",
      "OxidationStates": "3,4,5,7",
      "IonizationEnergy": "",
      "ThermalConductivity": "",
      "ElectronAffinity": "",
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1981,
      "Radioactive": 1,
      "DiscoveredBy": "G.Münzenberg et al. (GSI Darmstadt)"
    },
    {
      "AtomicNumber": 108,
      "Symbol": "Hs",
      "EnglishName": "Hassium",
      "Group": 8,
      "Period": 7,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 277,
      "Configuration": "[Rn] 5f14 6d6 7s2",
      "ShellConfiguration": "2,8,18,32,32,14,2",
      "StandardState": 2,
      "Density": 40.7,
      "MeltingPoint": "",
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      "HeatOfFusion": "",
      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": "",
      "OxidationStates": "2,4,6,8",
      "IonizationEnergy": "",
      "ThermalConductivity": "",
      "ElectronAffinity": "",
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1984,
      "Radioactive": 1,
      "DiscoveredBy": "G. Münzenberg, P. Armbruster et al. (GSI Darmstadt)"
    },
    {
      "AtomicNumber": 109,
      "Symbol": "Mt",
      "EnglishName": "Meitnerium",
      "Group": 9,
      "Period": 7,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 278,
      "Configuration": "[Rn] 5f14 6d7 7s2",
      "ShellConfiguration": "2,8,18,32,32,15,2",
      "StandardState": 2,
      "Density": 37.4,
      "MeltingPoint": "",
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      "HeatOfVaporization": "",
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      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": "",
      "OxidationStates": "1,3,6",
      "IonizationEnergy": "",
      "ThermalConductivity": "",
      "ElectronAffinity": "",
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1982,
      "Radioactive": 1,
      "DiscoveredBy": "G. Münzenberg, P. Armbruster et al. (GSI Darmstadt)"
    },
    {
      "AtomicNumber": 110,
      "Symbol": "Ds",
      "EnglishName": "Darmstadtium",
      "Group": 10,
      "Period": 7,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 281,
      "Configuration": "[Rn] 5f14 6d8 7s2",
      "ShellConfiguration": "2,8,18,32,32,16,2",
      "StandardState": 2,
      "Density": 34.8,
      "MeltingPoint": "",
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      "AtomicRadius": "",
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      "VanDerWaalsRadius": "",
      "Electronegativity": "",
      "OxidationStates": "0,2,8",
      "IonizationEnergy": "",
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      "ElectronAffinity": "",
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1994,
      "Radioactive": 1,
      "DiscoveredBy": "S. Hofmann et al. (GSI Darmstadt)"
    },
    {
      "AtomicNumber": 111,
      "Symbol": "Rg",
      "EnglishName": "Roentgenium",
      "Group": 11,
      "Period": 7,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 282,
      "Configuration": "[Rn] 5f14 6d9 7s2",
      "ShellConfiguration": "2,8,18,32,32,17,2",
      "StandardState": 2,
      "Density": 28.7,
      "MeltingPoint": "",
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      "Electronegativity": "",
      "OxidationStates": 3,
      "IonizationEnergy": "",
      "ThermalConductivity": "",
      "ElectronAffinity": 151,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1994,
      "Radioactive": 1,
      "DiscoveredBy": "S. Hofmann et al. (GSI Darmstadt)"
    },
    {
      "AtomicNumber": 112,
      "Symbol": "Cn",
      "EnglishName": "Copernicium",
      "Group": 12,
      "Period": 7,
      "Block": "d",
      "Category": 3,
      "AtomicMass": 285,
      "Configuration": "[Rn] 5f14 6d10 7s2",
      "ShellConfiguration": "2,8,18,32,32,18,2",
      "StandardState": 1,
      "Density": 23.7,
      "MeltingPoint": "",
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      "Electronegativity": "",
      "OxidationStates": "0,1,2,4",
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      "ElectronAffinity": "",
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1996,
      "Radioactive": 1,
      "DiscoveredBy": "S. Hofmann et al. (GSI Darmstadt)"
    },
    {
      "AtomicNumber": 113,
      "Symbol": "Nh",
      "EnglishName": "Nihonium",
      "Group": 13,
      "Period": 7,
      "Block": "p",
      "Category": 4,
      "AtomicMass": 286,
      "Configuration": "[Rn] 5f14 6d10 7s2 7p1",
      "ShellConfiguration": "2,8,18,32,32,18,3",
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      "OxidationStates": "1,3",
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      "AbundanceCrust": 0,
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      "Discovery": 2004,
      "Radioactive": 1,
      "DiscoveredBy": "Y. Oganessian et al. (JINR Dubna), K. Morita et al. (RIKEN Wako, Japan)"
    },
    {
      "AtomicNumber": 114,
      "Symbol": "Fl",
      "EnglishName": "Flerovium",
      "Group": 14,
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      "Block": "p",
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      "Configuration": "[Rn] 5f14 6d10 7s2 7p2",
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      "IonizationEnergy": "",
      "ThermalConductivity": "",
      "ElectronAffinity": "",
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 1999,
      "Radioactive": 1,
      "DiscoveredBy": "Y. Oganessian et al. (JINR Dubna)"
    },
    {
      "AtomicNumber": 115,
      "Symbol": "Mc",
      "EnglishName": "Moscovium",
      "Group": 15,
      "Period": 7,
      "Block": "p",
      "Category": 4,
      "AtomicMass": 290,
      "Configuration": "[Rn] 5f14 6d10 7s2 7p3",
      "ShellConfiguration": "2,8,18,32,32,18,5",
      "StandardState": 2,
      "Density": 13.5,
      "MeltingPoint": 700,
      "BoilingPoint": 1400,
      "HeatCapacity": "",
      "HeatOfFusion": "",
      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": "",
      "OxidationStates": "1,3",
      "IonizationEnergy": "",
      "ThermalConductivity": "",
      "ElectronAffinity": 35.3,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 2003,
      "Radioactive": 1,
      "DiscoveredBy": "Y. Oganessian et al. (JINR Dubna)"
    },
    {
      "AtomicNumber": 116,
      "Symbol": "Lv",
      "EnglishName": "Livermorium",
      "Group": 16,
      "Period": 7,
      "Block": "p",
      "Category": 4,
      "AtomicMass": 293,
      "Configuration": "[Rn] 5f14 6d10 7s2 7p4",
      "ShellConfiguration": "2,8,18,32,32,18,6",
      "StandardState": 2,
      "Density": 12.9,
      "MeltingPoint": 709,
      "BoilingPoint": 1085,
      "HeatCapacity": "",
      "HeatOfFusion": "",
      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": "",
      "OxidationStates": 2,
      "IonizationEnergy": "",
      "ThermalConductivity": "",
      "ElectronAffinity": 74.9,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 2000,
      "Radioactive": 1,
      "DiscoveredBy": "Y. Oganessian et al. (JINR Dubna)"
    },
    {
      "AtomicNumber": 117,
      "Symbol": "Ts",
      "EnglishName": "Tennessine",
      "Group": 17,
      "Period": 7,
      "Block": "p",
      "Category": 4,
      "AtomicMass": 294,
      "Configuration": "[Rn] 5f14 6d10 7s2 7p5",
      "ShellConfiguration": "2,8,18,32,32,18,7",
      "StandardState": 2,
      "Density": 7.2,
      "MeltingPoint": 723,
      "BoilingPoint": 883,
      "HeatCapacity": "",
      "HeatOfFusion": "",
      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": "",
      "OxidationStates": "1,3",
      "IonizationEnergy": "",
      "ThermalConductivity": "",
      "ElectronAffinity": 165.9,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 2009,
      "Radioactive": 1,
      "DiscoveredBy": "Y. Oganessian et al. (JINR Dubna)"
    },
    {
      "AtomicNumber": 118,
      "Symbol": "Og",
      "EnglishName": "Oganesson",
      "Group": 18,
      "Period": 7,
      "Block": "p",
      "Category": 7,
      "AtomicMass": 294,
      "Configuration": "[Rn] 5f14 6d10 7s2 7p6",
      "ShellConfiguration": "2,8,18,32,32,18,8",
      "StandardState": 0,
      "Density": 5,
      "MeltingPoint": "",
      "BoilingPoint": 350,
      "HeatCapacity": "",
      "HeatOfFusion": "",
      "HeatOfVaporization": "",
      "AtomicRadius": "",
      "CovalentRadius": "",
      "VanDerWaalsRadius": "",
      "Electronegativity": "",
      "OxidationStates": "2,4",
      "IonizationEnergy": "",
      "ThermalConductivity": "",
      "ElectronAffinity": 5.403,
      "AbundanceCrust": 0,
      "AbundanceUniverse": "",
      "Discovery": 2002,
      "Radioactive": 1,
      "DiscoveredBy": "Y. Oganessian et al. (JINR Dubna)"
    }
  ]
}