elements = [
    {
        "atomic_no": "21",
        "name": "Scandium",
        "symbol": "Sc",
        "block": "d",
        "atomic_mass": "44.96",
        "nn": "24",
        "np": "21",
        "ne": "21",
        "period": "4",
        "group": "3",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "2.1",
        "electronegativity": "1.36",
        "first_ionization": "6.5615",
        "density": "2.99",
        "melting_point": "1812.15",
        "boiling_point": "3109",
        "isotrops": "15",
        "discoverer": "Nilson",
        "year": "1878",
        "specific_heat": "0.568",
        "shells": "4",
        "valence": "-1"
    },
    {
        "atomic_no": "22",
        "name": "Titanium",
        "symbol": "Ti",
        "block": "d",
        "atomic_mass": "47.87",
        "nn": "26",
        "np": "22",
        "ne": "22",
        "period": "4",
        "group": "4",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "2",
        "electronegativity": "1.54",
        "first_ionization": "6.8281",
        "density": "4.54",
        "melting_point": "1933.15",
        "boiling_point": "3560",
        "isotrops": "9",
        "discoverer": "Gregor",
        "year": "1791",
        "specific_heat": "0.523",
        "shells": "4",
        "valence": "-1"
    },
    {
        "atomic_no": "23",
        "name": "Vanadium",
        "symbol": "V",
        "block": "d",
        "atomic_mass": "50.94",
        "nn": "28",
        "np": "23",
        "ne": "23",
        "period": "4",
        "group": "5",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.9",
        "electronegativity": "1.63",
        "first_ionization": "6.7462",
        "density": "6.11",
        "melting_point": "2175.15",
        "boiling_point": "3680",
        "isotrops": "9",
        "discoverer": "   del Rio",
        "year": "1801",
        "specific_heat": "0.489",
        "shells": "4",
        "valence": "-1"
    },
    {
        "atomic_no": "24",
        "name": "Chromium",
        "symbol": "Cr",
        "block": "d",
        "atomic_mass": "52",
        "nn": "28",
        "np": "24",
        "ne": "24",
        "period": "4",
        "group": "6",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.9",
        "electronegativity": "1.66",
        "first_ionization": "6.7665",
        "density": "7.15",
        "melting_point": "2130.15",
        "boiling_point": "2944",
        "isotrops": "9",
        "discoverer": "Vauquelin",
        "year": "1797",
        "specific_heat": "0.449",
        "shells": "4",
        "valence": "-1"
    },
    {
        "atomic_no": "25",
        "name": "Manganese",
        "symbol": "Mn",
        "block": "d",
        "atomic_mass": "54.94",
        "nn": "30",
        "np": "25",
        "ne": "25",
        "period": "4",
        "group": "7",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.8",
        "electronegativity": "1.55",
        "first_ionization": "7.434",
        "density": "7.44",
        "melting_point": "1519.15",
        "boiling_point": "2334",
        "isotrops": "11",
        "discoverer": "Gahn, Scheele",
        "year": "1774",
        "specific_heat": "0.479",
        "shells": "4",
        "valence": "-1"
    },
    {
        "atomic_no": "26",
        "name": "Iron",
        "symbol": "Fe",
        "block": "d",
        "atomic_mass": "55.85",
        "nn": "30",
        "np": "26",
        "ne": "26",
        "period": "4",
        "group": "8",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.7",
        "electronegativity": "1.83",
        "first_ionization": "7.9024",
        "density": "7.87",
        "melting_point": "1808.15",
        "boiling_point": "3134",
        "isotrops": "10",
        "discoverer": "Prehistoric",
        "year": "0",
        "specific_heat": "0.449",
        "shells": "4",
        "valence": "-1"
    },
    {
        "atomic_no": "27",
        "name": "Cobalt",
        "symbol": "Co",
        "block": "d",
        "atomic_mass": "58.93",
        "nn": "32",
        "np": "27",
        "ne": "27",
        "period": "4",
        "group": "9",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.7",
        "electronegativity": "1.88",
        "first_ionization": "7.881",
        "density": "8.86",
        "melting_point": "1768.15",
        "boiling_point": "3200",
        "isotrops": "14",
        "discoverer": "Brandt",
        "year": "1735",
        "specific_heat": "0.421",
        "shells": "4",
        "valence": "-1"
    },
    {
        "atomic_no": "28",
        "name": "Nickel",
        "symbol": "Ni",
        "block": "d",
        "atomic_mass": "58.69",
        "nn": "31",
        "np": "28",
        "ne": "28",
        "period": "4",
        "group": "10",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.6",
        "electronegativity": "1.91",
        "first_ionization": "7.6398",
        "density": "8.91",
        "melting_point": "1726.15",
        "boiling_point": "3186",
        "isotrops": "11",
        "discoverer": "Cronstedt",
        "year": "1751",
        "specific_heat": "0.444",
        "shells": "4",
        "valence": "-1"
    },
    {
        "atomic_no": "29",
        "name": "Copper",
        "symbol": "Cu",
        "block": "d",
        "atomic_mass": "63.55",
        "nn": "35",
        "np": "29",
        "ne": "29",
        "period": "4",
        "group": "11",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.6",
        "electronegativity": "1.9",
        "first_ionization": "7.7264",
        "density": "8.96",
        "melting_point": "1357.75",
        "boiling_point": "2835",
        "isotrops": "11",
        "discoverer": "Prehistoric",
        "year": "0",
        "specific_heat": "0.385",
        "shells": "4",
        "valence": "-1"
    },
    {
        "atomic_no": "30",
        "name": "Zinc",
        "symbol": "Zn",
        "block": "d",
        "atomic_mass": "65.38",
        "nn": "35",
        "np": "30",
        "ne": "30",
        "period": "4",
        "group": "12",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.5",
        "electronegativity": "1.65",
        "first_ionization": "9.3942",
        "density": "7.13",
        "melting_point": "692.88",
        "boiling_point": "1180",
        "isotrops": "15",
        "discoverer": "Prehistoric",
        "year": "0",
        "specific_heat": "0.388",
        "shells": "4",
        "valence": "-1"
    },
    {
        "atomic_no": "39",
        "name": "Yttrium",
        "symbol": "Y",
        "block": "d",
        "atomic_mass": "88.91",
        "nn": "50",
        "np": "39",
        "ne": "39",
        "period": "5",
        "group": "3",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "2.3",
        "electronegativity": "1.22",
        "first_ionization": "6.2173",
        "density": "4.47",
        "melting_point": "1799.15",
        "boiling_point": "3609",
        "isotrops": "21",
        "discoverer": "Gadolin",
        "year": "1794",
        "specific_heat": "0.298",
        "shells": "5",
        "valence": "-1"
    },
    {
        "atomic_no": "40",
        "name": "Zirconium",
        "symbol": "Zr",
        "block": "d",
        "atomic_mass": "91.22",
        "nn": "51",
        "np": "40",
        "ne": "40",
        "period": "5",
        "group": "4",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "2.2",
        "electronegativity": "1.33",
        "first_ionization": "6.6339",
        "density": "6.51",
        "melting_point": "2125.15",
        "boiling_point": "4682",
        "isotrops": "20",
        "discoverer": "Klaproth",
        "year": "1789",
        "specific_heat": "0.278",
        "shells": "5",
        "valence": "-1"
    },
    {
        "atomic_no": "41",
        "name": "Niobium",
        "symbol": "Nb",
        "block": "d",
        "atomic_mass": "92.91",
        "nn": "52",
        "np": "41",
        "ne": "41",
        "period": "5",
        "group": "5",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "2.1",
        "electronegativity": "1.6",
        "first_ionization": "6.7589",
        "density": "8.57",
        "melting_point": "2741.15",
        "boiling_point": "5017",
        "isotrops": "24",
        "discoverer": "Hatchett",
        "year": "1801",
        "specific_heat": "0.265",
        "shells": "5",
        "valence": "-1"
    },
    {
        "atomic_no": "42",
        "name": "Molybdenum",
        "symbol": "Mo",
        "block": "d",
        "atomic_mass": "95.96",
        "nn": "54",
        "np": "42",
        "ne": "42",
        "period": "5",
        "group": "6",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "2",
        "electronegativity": "2.16",
        "first_ionization": "7.0924",
        "density": "10.2",
        "melting_point": "2890.15",
        "boiling_point": "4912",
        "isotrops": "20",
        "discoverer": "Scheele",
        "year": "1778",
        "specific_heat": "0.251",
        "shells": "5",
        "valence": "-1"
    },
    {
        "atomic_no": "43",
        "name": "Technetium",
        "symbol": "Tc",
        "block": "d",
        "atomic_mass": "98",
        "nn": "55",
        "np": "43",
        "ne": "43",
        "period": "5",
        "group": "7",
        "phase": "artificial",
        "radioactive": "TRUE",
        "natural": "FALSE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "2",
        "electronegativity": "1.9",
        "first_ionization": "7.28",
        "density": "11.5",
        "melting_point": "2473.15",
        "boiling_point": "5150",
        "isotrops": "23",
        "discoverer": "Perrier and Segr?",
        "year": "1937",
        "specific_heat": "-1",
        "shells": "5",
        "valence": "-1"
    },
    {
        "atomic_no": "44",
        "name": "Ruthenium",
        "symbol": "Ru",
        "block": "d",
        "atomic_mass": "101.07",
        "nn": "57",
        "np": "44",
        "ne": "44",
        "period": "5",
        "group": "8",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.9",
        "electronegativity": "2.2",
        "first_ionization": "7.3605",
        "density": "12.4",
        "melting_point": "2523.15",
        "boiling_point": "4423",
        "isotrops": "16",
        "discoverer": "Klaus",
        "year": "1844",
        "specific_heat": "0.238",
        "shells": "5",
        "valence": "-1"
    },
    {
        "atomic_no": "45",
        "name": "Rhodium",
        "symbol": "Rh",
        "block": "d",
        "atomic_mass": "102.91",
        "nn": "58",
        "np": "45",
        "ne": "45",
        "period": "5",
        "group": "9",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.8",
        "electronegativity": "2.28",
        "first_ionization": "7.4589",
        "density": "12.4",
        "melting_point": "2239.15",
        "boiling_point": "3968",
        "isotrops": "20",
        "discoverer": "Wollaston",
        "year": "1803",
        "specific_heat": "0.243",
        "shells": "5",
        "valence": "-1"
    },
    {
        "atomic_no": "46",
        "name": "Palladium",
        "symbol": "Pd",
        "block": "d",
        "atomic_mass": "106.42",
        "nn": "60",
        "np": "46",
        "ne": "46",
        "period": "5",
        "group": "10",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.8",
        "electronegativity": "2.2",
        "first_ionization": "8.3369",
        "density": "12",
        "melting_point": "1825.15",
        "boiling_point": "3236",
        "isotrops": "21",
        "discoverer": "Wollaston",
        "year": "1803",
        "specific_heat": "0.244",
        "shells": "5",
        "valence": "-1"
    },
    {
        "atomic_no": "47",
        "name": "Silver",
        "symbol": "Ag",
        "block": "d",
        "atomic_mass": "107.87",
        "nn": "61",
        "np": "47",
        "ne": "47",
        "period": "5",
        "group": "11",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.8",
        "electronegativity": "1.93",
        "first_ionization": "7.5762",
        "density": "10.5",
        "melting_point": "1234.15",
        "boiling_point": "2435",
        "isotrops": "27",
        "discoverer": "Prehistoric",
        "year": "0",
        "specific_heat": "0.235",
        "shells": "5",
        "valence": "-1"
    },
    {
        "atomic_no": "48",
        "name": "Cadmium",
        "symbol": "Cd",
        "block": "d",
        "atomic_mass": "112.41",
        "nn": "64",
        "np": "48",
        "ne": "48",
        "period": "5",
        "group": "12",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.7",
        "electronegativity": "1.69",
        "first_ionization": "8.9938",
        "density": "8.69",
        "melting_point": "594.33",
        "boiling_point": "1040",
        "isotrops": "22",
        "discoverer": "Stromeyer",
        "year": "1817",
        "specific_heat": "0.232",
        "shells": "5",
        "valence": "-1"
    },
    {
        "atomic_no": "57",
        "name": "Lanthanum",
        "symbol": "La",
        "block": "d",
        "atomic_mass": "138.91",
        "nn": "82",
        "np": "57",
        "ne": "57",
        "period": "6",
        "group": "-1",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Lanthanide",
        "atomic_radius": "2.7",
        "electronegativity": "1.1",
        "first_ionization": "5.5769",
        "density": "6.15",
        "melting_point": "1193.15",
        "boiling_point": "3737",
        "isotrops": "19",
        "discoverer": "Mosander",
        "year": "1839",
        "specific_heat": "0.195",
        "shells": "6",
        "valence": "-1"
    },
    {
        "atomic_no": "72",
        "name": "Hafnium",
        "symbol": "Hf",
        "block": "d",
        "atomic_mass": "178.49",
        "nn": "106",
        "np": "72",
        "ne": "72",
        "period": "6",
        "group": "4",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "2.2",
        "electronegativity": "1.3",
        "first_ionization": "6.8251",
        "density": "13.3",
        "melting_point": "2500.15",
        "boiling_point": "4876",
        "isotrops": "17",
        "discoverer": "Coster and von Hevesy",
        "year": "1923",
        "specific_heat": "0.144",
        "shells": "6",
        "valence": "-1"
    },
    {
        "atomic_no": "73",
        "name": "Tantalum",
        "symbol": "Ta",
        "block": "d",
        "atomic_mass": "180.95",
        "nn": "108",
        "np": "73",
        "ne": "73",
        "period": "6",
        "group": "5",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "2.1",
        "electronegativity": "1.5",
        "first_ionization": "7.5496",
        "density": "16.7",
        "melting_point": "3269.15",
        "boiling_point": "5731",
        "isotrops": "19",
        "discoverer": "Ekeberg",
        "year": "1801",
        "specific_heat": "0.14",
        "shells": "6",
        "valence": "-1"
    },
    {
        "atomic_no": "74",
        "name": "Tungsten",
        "symbol": "W",
        "block": "d",
        "atomic_mass": "183.84",
        "nn": "110",
        "np": "74",
        "ne": "74",
        "period": "6",
        "group": "6",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "2",
        "electronegativity": "2.36",
        "first_ionization": "7.864",
        "density": "19.3",
        "melting_point": "3680.15",
        "boiling_point": "5828",
        "isotrops": "22",
        "discoverer": "J. and F. d'Elhuyar",
        "year": "1783",
        "specific_heat": "0.132",
        "shells": "6",
        "valence": "-1"
    },
    {
        "atomic_no": "75",
        "name": "Rhenium",
        "symbol": "Re",
        "block": "d",
        "atomic_mass": "186.21",
        "nn": "111",
        "np": "75",
        "ne": "75",
        "period": "6",
        "group": "7",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "2",
        "electronegativity": "1.9",
        "first_ionization": "7.8335",
        "density": "21",
        "melting_point": "3453.15",
        "boiling_point": "5869",
        "isotrops": "21",
        "discoverer": "Noddack, Berg, and Tacke",
        "year": "1925",
        "specific_heat": "0.137",
        "shells": "6",
        "valence": "-1"
    },
    {
        "atomic_no": "76",
        "name": "Osmium",
        "symbol": "Os",
        "block": "d",
        "atomic_mass": "190.23",
        "nn": "114",
        "np": "76",
        "ne": "76",
        "period": "6",
        "group": "8",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.9",
        "electronegativity": "2.2",
        "first_ionization": "8.4382",
        "density": "22.6",
        "melting_point": "3300.15",
        "boiling_point": "5285",
        "isotrops": "19",
        "discoverer": "Tennant",
        "year": "1803",
        "specific_heat": "0.13",
        "shells": "6",
        "valence": "-1"
    },
    {
        "atomic_no": "77",
        "name": "Iridium",
        "symbol": "Ir",
        "block": "d",
        "atomic_mass": "192.22",
        "nn": "115",
        "np": "77",
        "ne": "77",
        "period": "6",
        "group": "9",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.9",
        "electronegativity": "2.2",
        "first_ionization": "8.967",
        "density": "22.6",
        "melting_point": "2716.15",
        "boiling_point": "4701",
        "isotrops": "25",
        "discoverer": "Tennant",
        "year": "1804",
        "specific_heat": "0.131",
        "shells": "6",
        "valence": "-1"
    },
    {
        "atomic_no": "78",
        "name": "Platinum",
        "symbol": "Pt",
        "block": "d",
        "atomic_mass": "195.08",
        "nn": "117",
        "np": "78",
        "ne": "78",
        "period": "6",
        "group": "10",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.8",
        "electronegativity": "2.28",
        "first_ionization": "8.9587",
        "density": "21.5",
        "melting_point": "2045.15",
        "boiling_point": "4098",
        "isotrops": "32",
        "discoverer": "Ulloa/Wood",
        "year": "1735",
        "specific_heat": "0.133",
        "shells": "6",
        "valence": "-1"
    },
    {
        "atomic_no": "79",
        "name": "Gold",
        "symbol": "Au",
        "block": "d",
        "atomic_mass": "196.97",
        "nn": "118",
        "np": "79",
        "ne": "79",
        "period": "6",
        "group": "11",
        "phase": "solid",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.8",
        "electronegativity": "2.54",
        "first_ionization": "9.2255",
        "density": "19.3",
        "melting_point": "1337.73",
        "boiling_point": "3129",
        "isotrops": "21",
        "discoverer": "Prehistoric",
        "year": "0",
        "specific_heat": "0.129",
        "shells": "6",
        "valence": "-1"
    },
    {
        "atomic_no": "80",
        "name": "Mercury",
        "symbol": "Hg",
        "block": "d",
        "atomic_mass": "200.59",
        "nn": "121",
        "np": "80",
        "ne": "80",
        "period": "6",
        "group": "12",
        "phase": "liq",
        "radioactive": "FALSE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "1.8",
        "electronegativity": "2",
        "first_ionization": "10.4375",
        "density": "13.5",
        "melting_point": "234.43",
        "boiling_point": "630",
        "isotrops": "26",
        "discoverer": "Prehistoric",
        "year": "0",
        "specific_heat": "0.14",
        "shells": "6",
        "valence": "-1"
    },
    {
        "atomic_no": "89",
        "name": "Actinium",
        "symbol": "Ac",
        "block": "d",
        "atomic_mass": "227",
        "nn": "138",
        "np": "89",
        "ne": "89",
        "period": "7",
        "group": "0",
        "phase": "solid",
        "radioactive": "TRUE",
        "natural": "TRUE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Actinide",
        "atomic_radius": "0",
        "electronegativity": "1.1",
        "first_ionization": "5.17",
        "density": "10.1",
        "melting_point": "1323.15",
        "boiling_point": "3471",
        "isotrops": "11",
        "discoverer": "Debierne/Giesel",
        "year": "1899",
        "specific_heat": "0.12",
        "shells": "7",
        "valence": "-1"
    },
    {
        "atomic_no": "104",
        "name": "Rutherfordium",
        "symbol": "Rf",
        "block": "d",
        "atomic_mass": "261",
        "nn": "157",
        "np": "104",
        "ne": "104",
        "period": "7",
        "group": "4",
        "phase": "artificial",
        "radioactive": "TRUE",
        "natural": "FALSE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "0",
        "electronegativity": "-1",
        "first_ionization": "-1",
        "density": "18.1",
        "melting_point": "-1",
        "boiling_point": "-1",
        "isotrops": "-1",
        "discoverer": "Ghiorso et al.",
        "year": "1969",
        "specific_heat": "-1",
        "shells": "7",
        "valence": "-1"
    },
    {
        "atomic_no": "105",
        "name": "Dubnium",
        "symbol": "Db",
        "block": "d",
        "atomic_mass": "262",
        "nn": "157",
        "np": "105",
        "ne": "105",
        "period": "7",
        "group": "5",
        "phase": "artificial",
        "radioactive": "TRUE",
        "natural": "FALSE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "0",
        "electronegativity": "-1",
        "first_ionization": "-1",
        "density": "39",
        "melting_point": "-1",
        "boiling_point": "-1",
        "isotrops": "-1",
        "discoverer": "Ghiorso et al.",
        "year": "1970",
        "specific_heat": "-1",
        "shells": "7",
        "valence": "-1"
    },
    {
        "atomic_no": "106",
        "name": "Seaborgium",
        "symbol": "Sg",
        "block": "d",
        "atomic_mass": "266",
        "nn": "160",
        "np": "106",
        "ne": "106",
        "period": "7",
        "group": "6",
        "phase": "artificial",
        "radioactive": "TRUE",
        "natural": "FALSE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "0",
        "electronegativity": "-1",
        "first_ionization": "-1",
        "density": "35",
        "melting_point": "-1",
        "boiling_point": "-1",
        "isotrops": "-1",
        "discoverer": "Ghiorso et al.",
        "year": "1974",
        "specific_heat": "-1",
        "shells": "7",
        "valence": "-1"
    },
    {
        "atomic_no": "107",
        "name": "Bohrium",
        "symbol": "Bh",
        "block": "d",
        "atomic_mass": "264",
        "nn": "157",
        "np": "107",
        "ne": "107",
        "period": "7",
        "group": "7",
        "phase": "artificial",
        "radioactive": "TRUE",
        "natural": "FALSE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "0",
        "electronegativity": "-1",
        "first_ionization": "-1",
        "density": "37",
        "melting_point": "-1",
        "boiling_point": "-1",
        "isotrops": "-1",
        "discoverer": "Armbruster and M?nzenberg",
        "year": "1981",
        "specific_heat": "-1",
        "shells": "7",
        "valence": "-1"
    },
    {
        "atomic_no": "108",
        "name": "Hassium",
        "symbol": "Hs",
        "block": "d",
        "atomic_mass": "267",
        "nn": "159",
        "np": "108",
        "ne": "108",
        "period": "7",
        "group": "8",
        "phase": "artificial",
        "radioactive": "TRUE",
        "natural": "FALSE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "0",
        "electronegativity": "-1",
        "first_ionization": "-1",
        "density": "41",
        "melting_point": "-1",
        "boiling_point": "-1",
        "isotrops": "-1",
        "discoverer": "Armbruster and M?nzenberg",
        "year": "1983",
        "specific_heat": "-1",
        "shells": "7",
        "valence": "-1"
    },
    {
        "atomic_no": "109",
        "name": "Meitnerium",
        "symbol": "Mt",
        "block": "d",
        "atomic_mass": "268",
        "nn": "159",
        "np": "109",
        "ne": "109",
        "period": "7",
        "group": "9",
        "phase": "artificial",
        "radioactive": "TRUE",
        "natural": "FALSE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "0",
        "electronegativity": "-1",
        "first_ionization": "-1",
        "density": "35",
        "melting_point": "-1",
        "boiling_point": "-1",
        "isotrops": "-1",
        "discoverer": "GSI, Darmstadt, West Germany",
        "year": "1982",
        "specific_heat": "-1",
        "shells": "7",
        "valence": "-1"
    },
    {
        "atomic_no": "110",
        "name": "Darmstadtium ",
        "symbol": "Ds ",
        "block": "d",
        "atomic_mass": "271",
        "nn": "161",
        "np": "110",
        "ne": "110",
        "period": "7",
        "group": "10",
        "phase": "artificial",
        "radioactive": "TRUE",
        "natural": "FALSE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "0",
        "electronegativity": "-1",
        "first_ionization": "-1",
        "density": "-1",
        "melting_point": "-1",
        "boiling_point": "-1",
        "isotrops": "-1",
        "discoverer": "Not_defined",
        "year": "1994",
        "specific_heat": "-1",
        "shells": "7",
        "valence": "-1"
    },
    {
        "atomic_no": "111",
        "name": "Roentgenium ",
        "symbol": "Rg ",
        "block": "d",
        "atomic_mass": "272",
        "nn": "161",
        "np": "111",
        "ne": "111",
        "period": "7",
        "group": "11",
        "phase": "artificial",
        "radioactive": "TRUE",
        "natural": "FALSE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "0",
        "electronegativity": "-1",
        "first_ionization": "-1",
        "density": "-1",
        "melting_point": "-1",
        "boiling_point": "-1",
        "isotrops": "-1",
        "discoverer": "Not_defined",
        "year": "1994",
        "specific_heat": "-1",
        "shells": "7",
        "valence": "-1"
    },
    {
        "atomic_no": "112",
        "name": "Copernicium ",
        "symbol": "Cn ",
        "block": "d",
        "atomic_mass": "285",
        "nn": "173",
        "np": "112",
        "ne": "112",
        "period": "7",
        "group": "12",
        "phase": "artificial",
        "radioactive": "TRUE",
        "natural": "FALSE",
        "metal": "TRUE",
        "non_metal": "FALSE",
        "metalloid": "FALSE",
        "type": "Transition Metal",
        "atomic_radius": "0",
        "electronegativity": "-1",
        "first_ionization": "-1",
        "density": "-1",
        "melting_point": "-1",
        "boiling_point": "-1",
        "isotrops": "-1",
        "discoverer": "Not_defined",
        "year": "1996",
        "specific_heat": "-1",
        "shells": "7",
        "valence": "-1"
    }
]
