element.pl

#!/usr/bin/perl

use strict;
use warnings;

my %elements = (
'hydrogen' => {
    'Z' => '1',
    'symbol' => 'H',
    'name' => 'Hydrogen',
    'origin_of_name' => "the Greek 'hydro' and 'genes' meaning water-forming",
    'group' => ' N/A',
    'period' => ' 1',
    'weight' => '1.00794(7)2 3 4 9',
    'density' => '0.00008988',
    'melt' => '14.175',
    'heat' => '14.304',
    'neg' => '2.20',
    'abundance' => '1400',
},
'helium' => {
    'Z' => '2',
    'symbol' => 'He',
    'name' => 'Helium',
    'origin_of_name' => "the Greek, 'helios' meaning sun",
    'group' => ' 18',
    'period' => '1',
    'weight' => '4.002602(2)2 4',
    'density' => '0.0001785',
    'melt' => '0.956',
    'heat' => '5.193',
    'neg' => '–',
    'abundance' => '0.008',
},
'lithium' => {
    'Z' => '3',
    'symbol' => 'Li',
    'name' => 'Lithium',
    'origin_of_name' => " the Greek 'lithos' meaning stone",
    'group' => '1',
    'period' => '2',
    'weight' => '6.941(2)2 3 4 5 9',
    'density' => '0.534',
    'melt' => '453.85',
    'heat' => '3.582',
    'neg' => '0.98',
    'abundance' => '20',
},
'beryllium' => {
    'Z' => '4',
    'symbol' => 'Be',
    'name' => 'Beryllium',
    'origin_of_name' => "the Greek name for beryl, 'beryllo'",
    'group' => ' 2',
    'period' => '2',
    'weight' => '9.012182(3)',
    'density' => ' 1.85',
    'melt' => '1560.15',
    'heat' => '1.825',
    'neg' => '1.57',
    'abundance' => '2.8',
},
'boron' => {
    'Z' => '5',
    'symbol' => 'B',
    'name' => 'Boron',
    'origin_of_name' => "the Arabic 'buraq', which was the name for borax",
    'group' => '13',
    'period' => '2',
    'weight' => '10.811(7)2 3 4 9',
    'density' => '2.34',
    'melt' => '2573.15',
    'heat' => '1.026',
    'neg' => '2.04',
    'abundance' => '10',
},
'carbon' => {
    'Z' => '6',
    'symbol' => 'C',
    'name' => 'Carbon',
    'origin_of_name' => "the Latin ‘carbo’, meaning charcoal",
    'group' => ' 14',
    'period' => '2',
    'weight' => '12.0107(8)2 4 9',
    'density' => ' 2.267',
    'melt' => '3915 (sublimates)',
    'heat' => '0.709',
    'neg' => '2.55',
    'abundance' => '200',
},
'nitrogen' => {
    'Z' => '7',
    'symbol' => 'N',
    'name' => 'Nitrogen',
    'origin_of_name' => "the Greek 'nitron' and 'genes' meaning nitre-forming",
    'group' => '15',
    'period' => '2',
    'weight' => '14.0067(2)2 4 9',
    'density' => ' 0.0012506',
    'melt' => '63.29',
    'heat' => '1.04',
    'neg' => '3.04',
    'abundance' => '19',
},
'oxygen' => {
    'Z' => '8',
    'symbol' => 'O',
    'name' => 'Oxygen',
    'origin_of_name' => "the Greek 'oxy' and 'genes' meaning acid-forming",
    'group' => '16',
    'period' => '2',
    'weight' => '15.9994(3)2 4 9',
    'density' => ' 0.001429',
    'melt' => '50.5',
    'heat' => '0.918',
    'neg' => '3.44',
    'abundance' => '461000',
},
'fluorine' => {
    'Z' => '9',
    'symbol' => 'F',
    'name' => 'Fluorine',
    'origin_of_name' => "the Latin 'fluere', meaning to flow",
    'group' => ' 17',
    'period' => '2',
    'weight' => '18.9984032(5)',
    'density' => '0.001696',
    'melt' => '53.63',
    'heat' => '0.824',
    'neg' => '3.98',
    'abundance' => '585',
},
'neon' => {
    'Z' => '10',
    'symbol' => 'Ne',
    'name' => 'Neon',
    'origin_of_name' => "the Greek 'neos', meaning new",
    'group' => '18',
    'period' => '2',
    'weight' => '20.1797(6)2 3',
    'density' => '0.0008999',
    'melt' => '24.703',
    'heat' => '1.03',
    'neg' => '–',
    'abundance' => '0.005',
},
'sodium' => {
    'Z' => '11',
    'symbol' => 'Na',
    'name' => 'Sodium',
    'origin_of_name' => "the English word soda (natrium in Latin)[2]",
    'group' => ' 1',
    'period' => '3',
    'weight' => '22.98976928(2)',
    'density' => '0.971',
    'melt' => '371.15',
    'heat' => '1.228',
    'neg' => '0.93',
    'abundance' => '23600',
},
'magnesium' => {
    'Z' => '12',
    'symbol' => 'Mg',
    'name' => 'Magnesium',
    'origin_of_name' => "Magnesia, a district of Eastern Thessaly in Greece",
    'group' => '2',
    'period' => '3',
    'weight' => '24.3050(6)',
    'density' => '1.738',
    'melt' => '923.15',
    'heat' => '1.023',
    'neg' => '1.31',
    'abundance' => '23300',
},
'aluminium' => {
    'Z' => '13',
    'symbol' => 'Al',
    'name' => 'Aluminium',
    'origin_of_name' => "the Latin name for alum, 'alumen' meaning bitter salt",
    'group' => '13',
    'period' => '3',
    'weight' => '26.9815386(8)',
    'density' => '2.698',
    'melt' => '933.4',
    'heat' => '0.897',
    'neg' => '1.61',
    'abundance' => '82300',
},
'silicon' => {
    'Z' => '14',
    'symbol' => 'Si',
    'name' => 'Silicon',
    'origin_of_name' => " the Latin 'silex' or 'silicis', meaning flint",
    'group' => '14',
    'period' => '3',
    'weight' => '28.0855(3)4 9',
    'density' => '2.3296',
    'melt' => '1683.15',
    'heat' => '0.705',
    'neg' => '1.9',
    'abundance' => ' 282000',
},
'phosphorus' => {
    'Z' => '15',
    'symbol' => 'P',
    'name' => 'Phosphorus',
    'origin_of_name' => "the Greek 'phosphoros', meaning bringer of light",
    'group' => '15',
    'period' => '3',
    'weight' => '30.973762(2)',
    'density' => '1.82',
    'melt' => '317.25',
    'heat' => ' 0.769',
    'neg' => '2.19',
    'abundance' => '1050',
},
'sulfur' => {
    'Z' => '16',
    'symbol' => 'S',
    'name' => 'Sulfur',
    'origin_of_name' => "Either from the Sanskrit 'sulvere', or the Latin 'sulfurium', both names for sulfur[2]",
    'group' => '16',
    'period' => '3',
    'weight' => '32.065(5)2 4 9',
    'density' => '2.067',
    'melt' => '388.51',
    'heat' => '0.71',
    'neg' => '2.58',
    'abundance' => '350',
},
'chlorine' => {
    'Z' => '17',
    'symbol' => 'Cl',
    'name' => 'Chlorine',
    'origin_of_name' => "the Greek 'chloros', meaning greenish yellow",
    'group' => '17',
    'period' => '3',
    'weight' => '35.453(2)2 3 4 9',
    'density' => '0.003214',
    'melt' => '172.31',
    'heat' => '0.479',
    'neg' => '3.16',
    'abundance' => '145',
},
'argon' => {
    'Z' => '18',
    'symbol' => 'Ar',
    'name' => 'Argon',
    'origin_of_name' => "the Greek, 'argos', meaning idle",
    'group' => '18',
    'period' => '3',
    'weight' => '39.948(1)2 4',
    'density' => '0.0017837',
    'melt' => '83.96',
    'heat' => '0.52',
    'neg' => '–',
    'abundance' => '3.5',
},
'potassium' => {
    'Z' => '19',
    'symbol' => 'K',
    'name' => 'Potassium',
    'origin_of_name' => "the English word potash (kalium in Latin)[2]",
    'group' => '1',
    'period' => '4',
    'weight' => '39.0983(1)',
    'density' => '0.862',
    'melt' => '336.5',
    'heat' => '0.757',
    'neg' => '0.82',
    'abundance' => '20900',
},
'calcium' => {
    'Z' => '20',
    'symbol' => 'Ca',
    'name' => 'Calcium',
    'origin_of_name' => " the Latin 'calx' meaning lime",
    'group' => '2',
    'period' => '4',
    'weight' => '40.078(4)2',
    'density' => '1.54',
    'melt' => '1112.15',
    'heat' => '0.647',
    'neg' => '1',
    'abundance' => '41500',
},
'scandium' => {
    'Z' => '21',
    'symbol' => 'Sc',
    'name' => 'Scandium',
    'origin_of_name' => "Scandinavia (with the Latin name Scandia)",
    'group' => '3',
    'period' => '4',
    'weight' => '44.955912(6)',
    'density' => '2.989',
    'melt' => '1812.15',
    'heat' => '0.568',
    'neg' => '1.36',
    'abundance' => '22',
},
'titanium' => {
    'Z' => '22',
    'symbol' => 'Ti',
    'name' => 'Titanium',
    'origin_of_name' => "Titans, the sons of the Earth goddess of Greek mythology",
    'group' => '4',
    'period' => '4',
    'weight' => '47.867(1)',
    'density' => '4.54',
    'melt' => '1933.15',
    'heat' => '0.523',
    'neg' => '1.54',
    'abundance' => '5650',
},
'vanadium' => {
    'Z' => '23',
    'symbol' => 'V',
    'name' => 'Vanadium',
    'origin_of_name' => "Vanadis, the old Norse name for the Scandinavian goddess Freyja",
    'group' => ' 5',
    'period' => '4',
    'weight' => '50.9415(1)',
    'density' => '6.11',
    'melt' => '2175.15',
    'heat' => '0.489',
    'neg' => '1.63',
    'abundance' => '120',
},
'chromium' => {
    'Z' => '24',
    'symbol' => 'Cr',
    'name' => 'Chromium',
    'origin_of_name' => "the Greek 'chroma', meaning colour",
    'group' => '6',
    'period' => '4',
    'weight' => '51.9961(6)',
    'density' => '7.15',
    'melt' => '2130.15',
    'heat' => '0.449',
    'neg' => '1.66',
    'abundance' => '102',
},
'manganese' => {
    'Z' => '25',
    'symbol' => 'Mn',
    'name' => 'Manganese',
    'origin_of_name' => "Either the Latin 'magnes', meaning magnet or from the black magnesium oxide, 'magnesia nigra'",
    'group' => '7',
    'period' => '4',
    'weight' => '54.938045(5)',
    'density' => '7.44',
    'melt' => '1519.15',
    'heat' => '0.479',
    'neg' => '1.55',
    'abundance' => '950',
},
'iron' => {
    'Z' => '26',
    'symbol' => 'Fe',
    'name' => 'Iron',
    'origin_of_name' => "the Anglo-Saxon name iren (ferrum in Latin)",
    'group' => ' 8',
    'period' => '4',
    'weight' => '55.845(2)',
    'density' => '7.874',
    'melt' => '1808.15',
    'heat' => '0.449',
    'neg' => '1.83',
    'abundance' => '56300',
},
'cobalt' => {
    'Z' => '27',
    'symbol' => 'Co',
    'name' => 'Cobalt',
    'origin_of_name' => "the German word 'kobald', meaning goblin",
    'group' => '9',
    'period' => '4',
    'weight' => '58.933195(5)',
    'density' => '8.86',
    'melt' => '1768.15',
    'heat' => '0.421',
    'neg' => '1.88',
    'abundance' => '25',
},
'nickel' => {
    'Z' => '28',
    'symbol' => 'Ni',
    'name' => 'Nickel',
    'origin_of_name' => "the shortened of the German 'kupfernickel' meaning either devil's copper or St. Nicholas's copper",
    'group' => '10',
    'period' => '4',
    'weight' => '58.6934(4)',
    'density' => '8.912',
    'melt' => '1726.15',
    'heat' => '0.444',
    'neg' => '1.91',
    'abundance' => '84',
},
'copper' => {
    'Z' => '29',
    'symbol' => 'Cu',
    'name' => 'Copper',
    'origin_of_name' => "the Old English name coper in turn derived from the Latin 'Cyprium aes', meaning a metal from Cyprus",
    'group' => '11',
    'period' => '4',
    'weight' => '63.546(3)4',
    'density' => '8.96',
    'melt' => '1357.75',
    'heat' => '0.385',
    'neg' => '1.9',
    'abundance' => ' 60',
},
'zinc' => {
    'Z' => '30',
    'symbol' => 'Zn',
    'name' => 'Zinc',
    'origin_of_name' => "the German, 'zinc', which may in turn be derived from the Persian word 'sing', meaning stone",
    'group' => '12',
    'period' => '4',
    'weight' => '65.38(2)',
    'density' => '7.134',
    'melt' => '692.88',
    'heat' => '0.388',
    'neg' => '1.65',
    'abundance' => '70',
},
'gallium' => {
    'Z' => '31',
    'symbol' => 'Ga',
    'name' => 'Gallium',
    'origin_of_name' => " France (with the Latin name Gallia)",
    'group' => ' 13',
    'period' => '4',
    'weight' => '69.723(1)',
    'density' => '5.907',
    'melt' => '302.91',
    'heat' => '0.371',
    'neg' => '1.81',
    'abundance' => '19',
},
'germanium' => {
    'Z' => '32',
    'symbol' => 'Ge',
    'name' => 'Germanium',
    'origin_of_name' => "Germany (with the Latin name Germania)",
    'group' => '14',
    'period' => '4',
    'weight' => '72.63(1)',
    'density' => '5.323',
    'melt' => '1211.45',
    'heat' => '0.32',
    'neg' => '2.01',
    'abundance' => '1.5',
},
'arsenic' => {
    'Z' => '33',
    'symbol' => 'As',
    'name' => 'Arsenic',
    'origin_of_name' => " the Greek name 'arsenikon' for the yellow pigment orpiment",
    'group' => '15',
    'period' => '4',
    'weight' => '74.92160(2)',
    'density' => ' 5.776',
    'melt' => '1090.157',
    'heat' => ' 0.329',
    'neg' => '2.18',
    'abundance' => '1.8',
},
'selenium' => {
    'Z' => '34',
    'symbol' => 'Se',
    'name' => 'Selenium',
    'origin_of_name' => "Moon (with the Greek name selene)",
    'group' => '16',
    'period' => '4',
    'weight' => '78.96(3)4',
    'density' => '4.809',
    'melt' => '494.15',
    'heat' => ' 0.321',
    'neg' => '2.55',
    'abundance' => '0.05',
},
'bromine' => {
    'Z' => '35',
    'symbol' => 'Br',
    'name' => 'Bromine',
    'origin_of_name' => " the Greek 'bromos' meaning stench",
    'group' => '17',
    'period' => '4',
    'weight' => '79.904(1)',
    'density' => '3.122',
    'melt' => '266.05',
    'heat' => '0.474',
    'neg' => '2.96',
    'abundance' => '2.4',
},
'krypton' => {
    'Z' => '36',
    'symbol' => 'Kr',
    'name' => 'Krypton',
    'origin_of_name' => " the Greek 'kryptos', meaning hidden",
    'group' => ' 18',
    'period' => '4',
    'weight' => '83.798(2)2 3',
    'density' => '0.003733',
    'melt' => '115.93',
    'heat' => '0.248',
    'neg' => '3',
    'abundance' => '<0.001',
},
'rubidium' => {
    'Z' => '37',
    'symbol' => 'Rb',
    'name' => 'Rubidium',
    'origin_of_name' => "the Latin 'rubidius', meaning deepest red",
    'group' => '1',
    'period' => '5',
    'weight' => '85.4678(3)2',
    'density' => ' 1.532',
    'melt' => '312.79',
    'heat' => ' 0.363',
    'neg' => '0.82',
    'abundance' => '90',
},
'strontium' => {
    'Z' => '38',
    'symbol' => 'Sr',
    'name' => 'Strontium',
    'origin_of_name' => "Strontian, a small town in Scotland",
    'group' => ' 2',
    'period' => '5',
    'weight' => '87.62(1)2 4',
    'density' => ' 2.64',
    'melt' => '1042.15',
    'heat' => '0.301',
    'neg' => '0.95',
    'abundance' => '370',
},
'yttrium' => {
    'Z' => '39',
    'symbol' => 'Y',
    'name' => 'Yttrium',
    'origin_of_name' => " Ytterby, Sweden",
    'group' => ' 3',
    'period' => '5',
    'weight' => '88.90585(2)',
    'density' => ' 4.469',
    'melt' => '1799.15',
    'heat' => '0.298',
    'neg' => '1.22',
    'abundance' => '33',
},
'zirconium' => {
    'Z' => '40',
    'symbol' => 'Zr',
    'name' => 'Zirconium',
    'origin_of_name' => "the Arabic 'zargun', meaning gold coloured",
    'group' => '4',
    'period' => '5',
    'weight' => '91.224(2)2',
    'density' => '6.506',
    'melt' => '2125.15',
    'heat' => '0.278',
    'neg' => '1.33',
    'abundance' => '165',
},
'niobium' => {
    'Z' => '41',
    'symbol' => 'Nb',
    'name' => 'Niobium',
    'origin_of_name' => " Niobe, daughter of king Tantalus from Greek mythology",
    'group' => '5',
    'period' => '5',
    'weight' => '92.90638(2)',
    'density' => ' 8.57',
    'melt' => '2741.15',
    'heat' => '0.265',
    'neg' => '1.6',
    'abundance' => ' 20',
},
'molybdenum' => {
    'Z' => '42',
    'symbol' => 'Mo',
    'name' => 'Molybdenum',
    'origin_of_name' => "the Greek 'molybdos' meaning lead",
    'group' => '6',
    'period' => '5',
    'weight' => '95.96(2)2',
    'density' => '10.22',
    'melt' => '2890.15',
    'heat' => '0.251',
    'neg' => '2.16',
    'abundance' => '1.2',
},
'technetium' => {
    'Z' => '43',
    'symbol' => 'Tc',
    'name' => 'Technetium',
    'origin_of_name' => "the Greek 'tekhnetos' meaning artificial",
    'group' => '7',
    'period' => '5',
    'weight' => '[98]1',
    'density' => '11.5',
    'melt' => '2473.15',
    'heat' => '–',
    'neg' => '1.9',
    'abundance' => ' <0.001',
},
'ruthenium' => {
    'Z' => '44',
    'symbol' => 'Ru',
    'name' => 'Ruthenium',
    'origin_of_name' => "Russia (with the Latin name Ruthenia)",
    'group' => '8',
    'period' => '5',
    'weight' => '101.07(2)2',
    'density' => '12.37',
    'melt' => '2523.15',
    'heat' => '0.238',
    'neg' => '2.2',
    'abundance' => ' 0.001',
},
'rhodium' => {
    'Z' => '45',
    'symbol' => 'Rh',
    'name' => 'Rhodium',
    'origin_of_name' => " the Greek 'rhodon', meaning rose coloured",
    'group' => '9',
    'period' => '5',
    'weight' => '102.90550(2)',
    'density' => '12.41',
    'melt' => '2239.15',
    'heat' => '0.243',
    'neg' => '2.28',
    'abundance' => '0.001',
},
'palladium' => {
    'Z' => '46',
    'symbol' => 'Pd',
    'name' => 'Palladium',
    'origin_of_name' => "Athena (Pallas Athena), the goddess of wisdom from Greek mythology",
    'group' => '10',
    'period' => '5',
    'weight' => '106.42(1)2',
    'density' => '12.02',
    'melt' => '1825.15',
    'heat' => '0.244',
    'neg' => '2.2',
    'abundance' => ' 0.015',
},
'silver' => {
    'Z' => '47',
    'symbol' => 'Ag',
    'name' => 'Silver',
    'origin_of_name' => "the Anglo-Saxon name siolfur (argentum in Latin)[2]",
    'group' => ' 11',
    'period' => '5',
    'weight' => '107.8682(2)2',
    'density' => '10.501',
    'melt' => '1234.15',
    'heat' => '0.235',
    'neg' => '1.93',
    'abundance' => '0.075',
},
'cadmium' => {
    'Z' => '48',
    'symbol' => 'Cd',
    'name' => 'Cadmium',
    'origin_of_name' => " the Latin name for the mineral calmine, 'cadmia'",
    'group' => '12',
    'period' => '5',
    'weight' => '112.411(8)2',
    'density' => ' 8.69',
    'melt' => '594.33',
    'heat' => '0.232',
    'neg' => '1.69',
    'abundance' => '0.159',
},
'indium' => {
    'Z' => '49',
    'symbol' => 'In',
    'name' => 'Indium',
    'origin_of_name' => "the Latin 'indicium', meaning violet or indigo",
    'group' => '13',
    'period' => '5',
    'weight' => '114.818(3)',
    'density' => '7.31',
    'melt' => '429.91',
    'heat' => '0.233',
    'neg' => '1.78',
    'abundance' => '0.25',
},
'tin' => {
    'Z' => '50',
    'symbol' => 'Sn',
    'name' => 'Tin',
    'origin_of_name' => " the Anglo-Saxon word tin (stannum in Latin, meaning hard)",
    'group' => '14',
    'period' => '5',
    'weight' => '118.710(7)2',
    'density' => ' 7.287',
    'melt' => '505.21',
    'heat' => '0.228',
    'neg' => '1.96',
    'abundance' => '2.3',
},
'antimony' => {
    'Z' => '51',
    'symbol' => 'Sb',
    'name' => 'Antimony',
    'origin_of_name' => "the Greek 'anti - monos', meaning not alone (stibium in Latin)",
    'group' => '15',
    'period' => '5',
    'weight' => '121.760(1)2',
    'density' => ' 6.685',
    'melt' => '904.05',
    'heat' => '0.207',
    'neg' => '2.05',
    'abundance' => '0.2',
},
'tellurium' => {
    'Z' => '52',
    'symbol' => 'Te',
    'name' => 'Tellurium',
    'origin_of_name' => "Earth, the third planet on solar system (with the Latin word tellus)",
    'group' => '16',
    'period' => '5',
    'weight' => '127.60(3)2',
    'density' => '6.232',
    'melt' => '722.8',
    'heat' => '0.202',
    'neg' => '2.1',
    'abundance' => ' 0.001',
},
'iodine' => {
    'Z' => '53',
    'symbol' => 'I',
    'name' => 'Iodine',
    'origin_of_name' => "the Greek 'iodes' meaning violet",
    'group' => '17',
    'period' => '5',
    'weight' => '126.90447(3)',
    'density' => '4.93',
    'melt' => '386.65',
    'heat' => '0.214',
    'neg' => '2.66',
    'abundance' => '0.45',
},
'xenon' => {
    'Z' => '54',
    'symbol' => 'Xe',
    'name' => 'Xenon',
    'origin_of_name' => "the Greek 'xenos' meaning stranger",
    'group' => '18',
    'period' => '5',
    'weight' => '131.293(6)2 3',
    'density' => '0.005887',
    'melt' => '161.45',
    'heat' => '0.158',
    'neg' => '2.6',
    'abundance' => ' <0.001',
},
'caesium' => {
    'Z' => '55',
    'symbol' => 'Cs',
    'name' => 'Caesium',
    'origin_of_name' => " the Latin 'caesius', meaning sky blue",
    'group' => '1',
    'period' => '6',
    'weight' => '132.9054519(2)',
    'density' => '1.873',
    'melt' => '301.7',
    'heat' => ' 0.242',
    'neg' => '0.79',
    'abundance' => '3',
},
'barium' => {
    'Z' => '56',
    'symbol' => 'Ba',
    'name' => 'Barium',
    'origin_of_name' => "the Greek 'barys', meaning heavy",
    'group' => '2',
    'period' => '6',
    'weight' => '137.327(7)',
    'density' => '3.594',
    'melt' => '1002.15',
    'heat' => '0.204',
    'neg' => '0.89',
    'abundance' => '425',
},
'lanthanum' => {
    'Z' => '57',
    'symbol' => 'La',
    'name' => 'Lanthanum',
    'origin_of_name' => "the Greek 'lanthanein', meaning to lie hidden",
    'group' => 'N/A',
    'period' => '6',
    'weight' => '138.90547(7)2',
    'density' => '6.145',
    'melt' => '1193.15',
    'heat' => '0.195',
    'neg' => '1.1',
    'abundance' => ' 39',
},
'cerium' => {
    'Z' => '58',
    'symbol' => 'Ce',
    'name' => 'Cerium',
    'origin_of_name' => "Ceres, the Roman God of agriculture",
    'group' => 'N/A',
    'period' => ' 6',
    'weight' => '140.116(1)2',
    'density' => ' 6.77',
    'melt' => '1071.15',
    'heat' => '0.192',
    'neg' => '1.12',
    'abundance' => '66.5',
},
'praseodymium' => {
    'Z' => '59',
    'symbol' => 'Pr',
    'name' => 'Praseodymium',
    'origin_of_name' => "the Greek 'prasios didymos' meaning green twin",
    'group' => 'N/A',
    'period' => '6',
    'weight' => '140.90765(2)',
    'density' => '6.773',
    'melt' => '1204.15',
    'heat' => '0.193',
    'neg' => '1.13',
    'abundance' => '9.2',
},
'neodymium' => {
    'Z' => '60',
    'symbol' => 'Nd',
    'name' => 'Neodymium',
    'origin_of_name' => "the Greek 'neos didymos' meaning new twin",
    'group' => 'N/A',
    'period' => '6',
    'weight' => '144.242(3)2',
    'density' => ' 7.007',
    'melt' => '1289.15',
    'heat' => '0.19',
    'neg' => '1.14',
    'abundance' => '41.5',
},
'promethium' => {
    'Z' => '61',
    'symbol' => 'Pm',
    'name' => 'Promethium',
    'origin_of_name' => "Prometheus of Greek mythology who stole fire from the Gods and gave it to humans",
    'group' => 'N/A',
    'period' => '6',
    'weight' => '[145]1',
    'density' => '7.26',
    'melt' => '1204.15',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '<0.001',
},
'samarium' => {
    'Z' => '62',
    'symbol' => 'Sm',
    'name' => 'Samarium',
    'origin_of_name' => "Samarskite, the name of the mineral from which it was first isolated",
    'group' => 'N/A',
    'period' => '6',
    'weight' => '150.36(2)2',
    'density' => '7.52',
    'melt' => '1345.15',
    'heat' => '0.197',
    'neg' => '1.17',
    'abundance' => '7.05',
},
'europium' => {
    'Z' => '63',
    'symbol' => 'Eu',
    'name' => 'Europium',
    'origin_of_name' => "Europe",
    'group' => 'N/A',
    'period' => '6',
    'weight' => '151.964(1)2',
    'density' => ' 5.243',
    'melt' => '1095.15',
    'heat' => '0.182',
    'neg' => '1.2',
    'abundance' => ' 2',
},
'gadolinium' => {
    'Z' => '64',
    'symbol' => 'Gd',
    'name' => 'Gadolinium',
    'origin_of_name' => "Johan Gadolin, chemist, physicist and mineralogist",
    'group' => 'N/A',
    'period' => '6',
    'weight' => '157.25(3)2',
    'density' => '7.895',
    'melt' => '1585.15',
    'heat' => '0.236',
    'neg' => '1.2',
    'abundance' => ' 6.2',
},
'terbium' => {
    'Z' => '65',
    'symbol' => 'Tb',
    'name' => 'Terbium',
    'origin_of_name' => " Ytterby, Sweden",
    'group' => 'N/A',
    'period' => ' 6',
    'weight' => '158.92535(2)',
    'density' => '8.229',
    'melt' => '1630.15',
    'heat' => '0.182',
    'neg' => '1.2',
    'abundance' => ' 1.2',
},
'dysprosium' => {
    'Z' => '66',
    'symbol' => 'Dy',
    'name' => 'Dysprosium',
    'origin_of_name' => "the Greek 'dysprositos', meaning hard to get",
    'group' => 'N/A',
    'period' => '6',
    'weight' => '162.500(1)2',
    'density' => ' 8.55',
    'melt' => '1680.15',
    'heat' => '0.17',
    'neg' => '1.22',
    'abundance' => '5.2',
},
'holmium' => {
    'Z' => '67',
    'symbol' => 'Ho',
    'name' => 'Holmium',
    'origin_of_name' => " Stockholm, Sweden (with the Latin name Holmia)",
    'group' => 'N/A',
    'period' => '6',
    'weight' => '164.93032(2)',
    'density' => '8.795',
    'melt' => '1743.15',
    'heat' => '0.165',
    'neg' => '1.23',
    'abundance' => '1.3',
},
'erbium' => {
    'Z' => '68',
    'symbol' => 'Er',
    'name' => 'Erbium',
    'origin_of_name' => "Ytterby, Sweden",
    'group' => 'N/A',
    'period' => ' 6',
    'weight' => '167.259(3)2',
    'density' => ' 9.066',
    'melt' => '1795.15',
    'heat' => '0.168',
    'neg' => '1.24',
    'abundance' => '3.5',
},
'thulium' => {
    'Z' => '69',
    'symbol' => 'Tm',
    'name' => 'Thulium',
    'origin_of_name' => " Thule, the ancient name for Scandinavia",
    'group' => 'N/A',
    'period' => ' 6',
    'weight' => '168.93421(2)',
    'density' => '9.321',
    'melt' => '1818.15',
    'heat' => '0.16',
    'neg' => '1.25',
    'abundance' => '0.52',
},
'ytterbium' => {
    'Z' => '70',
    'symbol' => 'Yb',
    'name' => 'Ytterbium',
    'origin_of_name' => "Ytterby, Sweden",
    'group' => 'N/A',
    'period' => ' 6',
    'weight' => '173.054(5)2',
    'density' => ' 6.965',
    'melt' => '1097.15',
    'heat' => '0.155',
    'neg' => '1.1',
    'abundance' => ' 3.2',
},
'lutetium' => {
    'Z' => '71',
    'symbol' => 'Lu',
    'name' => 'Lutetium',
    'origin_of_name' => "Paris, France (with the Roman name Lutetia)",
    'group' => ' 3',
    'period' => '6',
    'weight' => '174.9668(1)2',
    'density' => '9.84',
    'melt' => '1936.15',
    'heat' => '0.154',
    'neg' => '1.27',
    'abundance' => '0.8',
},
'hafnium' => {
    'Z' => '72',
    'symbol' => 'Hf',
    'name' => 'Hafnium',
    'origin_of_name' => " Copenhagen, Denmark (with the Latin name Hafnia)",
    'group' => '4',
    'period' => '6',
    'weight' => '178.49(2)',
    'density' => '13.31',
    'melt' => '2500.15',
    'heat' => '0.144',
    'neg' => '1.3',
    'abundance' => ' 3',
},
'tantalum' => {
    'Z' => '73',
    'symbol' => 'Ta',
    'name' => 'Tantalum',
    'origin_of_name' => "King Tantalus, father of Niobe from Greek mythology",
    'group' => ' 5',
    'period' => '6',
    'weight' => '180.94788(2)',
    'density' => '16.654',
    'melt' => '3269.15',
    'heat' => '0.14',
    'neg' => '1.5',
    'abundance' => ' 2',
},
'tungsten' => {
    'Z' => '74',
    'symbol' => 'W',
    'name' => 'Tungsten',
    'origin_of_name' => "the Swedish 'tung sten' meaning heavy stone (W is wolfram, the old name of the tungstenn mineral wolframite)[2]",
    'group' => ' 6',
    'period' => '6',
    'weight' => '183.84(1)',
    'density' => '19.25',
    'melt' => '3680.15',
    'heat' => '0.132',
    'neg' => '2.36',
    'abundance' => '1.3',
},
'rhenium' => {
    'Z' => '75',
    'symbol' => 'Re',
    'name' => 'Rhenium',
    'origin_of_name' => " Rhine, a river that flows from Grisons in the eastern Swiss Alps to the North Sea coast in the Netherlands (with the Latin name Rhenia)",
    'group' => ' 7',
    'period' => '6',
    'weight' => '186.207(1)',
    'density' => '21.02',
    'melt' => '3453.15',
    'heat' => '0.137',
    'neg' => '1.9',
    'abundance' => ' <0.001',
},
'osmium' => {
    'Z' => '76',
    'symbol' => 'Os',
    'name' => 'Osmium',
    'origin_of_name' => "the Greek 'osme', meaning smell",
    'group' => ' 8',
    'period' => '6',
    'weight' => '190.23(3)2',
    'density' => '22.61',
    'melt' => '3300.15',
    'heat' => '0.13',
    'neg' => '2.2',
    'abundance' => ' 0.002',
},
'iridium' => {
    'Z' => '77',
    'symbol' => 'Ir',
    'name' => 'Iridium',
    'origin_of_name' => " Iris, the Greek goddess of the rainbow",
    'group' => '9',
    'period' => '6',
    'weight' => '192.217(3)',
    'density' => '22.56',
    'melt' => '2716.15',
    'heat' => '0.131',
    'neg' => '2.2',
    'abundance' => ' 0.001',
},
'platinum' => {
    'Z' => '78',
    'symbol' => 'Pt',
    'name' => 'Platinum',
    'origin_of_name' => "the Spanish 'platina', meaning little silver",
    'group' => '10',
    'period' => '6',
    'weight' => '195.084(9)',
    'density' => '21.46',
    'melt' => '2045.15',
    'heat' => '0.133',
    'neg' => '2.28',
    'abundance' => '0.005',
},
'gold' => {
    'Z' => '79',
    'symbol' => 'Au',
    'name' => 'Gold',
    'origin_of_name' => "the Anglo-Saxon word gold, from Latin geolo, meaning yellow (aurum in Latin, meaning glow of sunrise)[2]",
    'group' => '11',
    'period' => '6',
    'weight' => '196.966569(4)',
    'density' => '19.282',
    'melt' => '1337.73',
    'heat' => '0.129',
    'neg' => '2.54',
    'abundance' => '0.004',
},
'mercury' => {
    'Z' => '80',
    'symbol' => 'Hg',
    'name' => 'Mercury',
    'origin_of_name' => " Mercury, the first planet in the Solar System",
    'group' => '12',
    'period' => '6',
    'weight' => '200.59(2)',
    'density' => '13.5336',
    'melt' => ' 234.43',
    'heat' => ' 0.14',
    'neg' => '2',
    'abundance' => '0.085',
},
'thallium' => {
    'Z' => '81',
    'symbol' => 'Tl',
    'name' => 'Thallium',
    'origin_of_name' => "the Greek 'thallos', meaning a green twig",
    'group' => '13',
    'period' => '6',
    'weight' => '204.3833(2)9',
    'density' => '11.85',
    'melt' => '577.15',
    'heat' => '0.129',
    'neg' => '1.62',
    'abundance' => '0.85',
},
'lead' => {
    'Z' => '82',
    'symbol' => 'Pb',
    'name' => 'Lead',
    'origin_of_name' => "the Anglo-Saxon lead (plumbum in Latin)[2]",
    'group' => '14',
    'period' => '6',
    'weight' => '207.2(1)2 4',
    'density' => ' 11.342',
    'melt' => '600.75',
    'heat' => '0.129',
    'neg' => '2.33',
    'abundance' => '14',
},
'bismuth' => {
    'Z' => '83',
    'symbol' => 'Bi',
    'name' => 'Bismuth',
    'origin_of_name' => " the German 'Bisemutum' a corruption of 'Weisse Masse' meaning white mass",
    'group' => '15',
    'period' => '6',
    'weight' => '208.98040(1)1',
    'density' => '9.807',
    'melt' => '544.67',
    'heat' => '0.122',
    'neg' => '2.02',
    'abundance' => '0.009',
},
'polonium' => {
    'Z' => '84',
    'symbol' => 'Po',
    'name' => 'Polonium',
    'origin_of_name' => "Poland, the native country of Marie Curie, who first isolated the element",
    'group' => '16',
    'period' => '6',
    'weight' => '[209]1',
    'density' => '9.32',
    'melt' => '527.15',
    'heat' => '–',
    'neg' => '2',
    'abundance' => '<0.001',
},
'astatine' => {
    'Z' => '85',
    'symbol' => 'At',
    'name' => 'Astatine',
    'origin_of_name' => "the Greek 'astatos', meaning unstable",
    'group' => '17',
    'period' => '6',
    'weight' => '[210]1',
    'density' => '7',
    'melt' => '575.15',
    'heat' => ' –',
    'neg' => '2.2',
    'abundance' => ' <0.001',
},
'radon' => {
    'Z' => '86',
    'symbol' => 'Rn',
    'name' => 'Radon',
    'origin_of_name' => "From radium, as it was first detected as an emission from radium during radioactive decay",
    'group' => '18',
    'period' => '6',
    'weight' => '[222]1',
    'density' => '0.00973',
    'melt' => ' 202.15',
    'heat' => '0.094',
    'neg' => '–',
    'abundance' => '<0.001',
},
'francium' => {
    'Z' => '87',
    'symbol' => 'Fr',
    'name' => 'Francium',
    'origin_of_name' => "France",
    'group' => '1',
    'period' => '7',
    'weight' => '[223]1',
    'density' => '1.87',
    'melt' => '300.15',
    'heat' => ' –',
    'neg' => '0.7',
    'abundance' => ' <0.001',
},
'radium' => {
    'Z' => '88',
    'symbol' => 'Ra',
    'name' => 'Radium',
    'origin_of_name' => "the Latin 'radius', meaning ray",
    'group' => ' 2',
    'period' => '7',
    'weight' => '[226]1',
    'density' => '5.5',
    'melt' => ' 973.15',
    'heat' => '–',
    'neg' => '0.9',
    'abundance' => ' <0.001',
},
'actinium' => {
    'Z' => '89',
    'symbol' => 'Ac',
    'name' => 'Actinium',
    'origin_of_name' => "the Greek 'actinos', meaning a ray",
    'group' => 'N/A',
    'period' => '7',
    'weight' => '[227]1',
    'density' => '10.07',
    'melt' => '1323.15',
    'heat' => '0.12',
    'neg' => '1.1',
    'abundance' => ' <0.001',
},
'thorium' => {
    'Z' => '90',
    'symbol' => 'Th',
    'name' => 'Thorium',
    'origin_of_name' => " Thor, the Scandinavian god of war",
    'group' => 'N/A',
    'period' => '7',
    'weight' => '232.03806(2)1 2',
    'density' => ' 11.72',
    'melt' => '2028.15',
    'heat' => '0.113',
    'neg' => '1.3',
    'abundance' => ' 9.6',
},
'protactinium' => {
    'Z' => '91',
    'symbol' => 'Pa',
    'name' => 'Protactinium',
    'origin_of_name' => "the Greek 'protos', meaning first, as a prefix to the element actinium, which is produced through the radioactive decay of protactinium",
    'group' => 'N/A',
    'period' => ' 7',
    'weight' => '231.03588(2)1',
    'density' => '15.37',
    'melt' => '1873.15',
    'heat' => '–',
    'neg' => '1.5',
    'abundance' => ' <0.001',
},
'uranium' => {
    'Z' => '92',
    'symbol' => 'U',
    'name' => 'Uranium',
    'origin_of_name' => " Uranus, the seventh planet in the Solar System",
    'group' => 'N/A',
    'period' => '7',
    'weight' => '238.02891(3)1',
    'density' => '18.95',
    'melt' => '1405.15',
    'heat' => '0.116',
    'neg' => '1.38',
    'abundance' => '2.7',
},
'neptunium' => {
    'Z' => '93',
    'symbol' => 'Np',
    'name' => 'Neptunium',
    'origin_of_name' => "Neptune, the eighth planet in the Solar System",
    'group' => 'N/A',
    'period' => '7',
    'weight' => '[237]1',
    'density' => '20.45',
    'melt' => '913.15',
    'heat' => '–',
    'neg' => '1.36',
    'abundance' => '<0.001',
},
'plutonium' => {
    'Z' => '94',
    'symbol' => 'Pu',
    'name' => 'Plutonium',
    'origin_of_name' => "Pluto, a dwarf planet in the Solar System",
    'group' => 'N/A',
    'period' => '7',
    'weight' => '[244]1',
    'density' => '19.84',
    'melt' => '913.15',
    'heat' => '–',
    'neg' => '1.28',
    'abundance' => '<0.001',
},
'americium' => {
    'Z' => '95',
    'symbol' => 'Am',
    'name' => 'Americium',
    'origin_of_name' => "USA, where the element was first synthesized",
    'group' => 'N/A',
    'period' => '7',
    'weight' => '[243]1',
    'density' => '13.69',
    'melt' => '1267.15',
    'heat' => '–',
    'neg' => '1.3',
    'abundance' => ' <0.001',
},
'curium' => {
    'Z' => '96',
    'symbol' => 'Cm',
    'name' => 'Curium',
    'origin_of_name' => "Pierre Curie, a French physicist, and Marie Curie, a French-Polish physicist and chemist",
    'group' => 'N/A',
    'period' => '7',
    'weight' => '[247]1',
    'density' => '13.51',
    'melt' => '1340.15',
    'heat' => '–',
    'neg' => '1.3',
    'abundance' => ' <0.001',
},
'berkelium' => {
    'Z' => '97',
    'symbol' => 'Bk',
    'name' => 'Berkelium',
    'origin_of_name' => "Berkeley, California, USA, where the element was first synthesized",
    'group' => 'N/A',
    'period' => '7',
    'weight' => '[247]1',
    'density' => '14.79',
    'melt' => '1259.15',
    'heat' => ' –',
    'neg' => '1.3',
    'abundance' => ' <0.001',
},
'californium' => {
    'Z' => '98',
    'symbol' => 'Cf',
    'name' => 'Californium',
    'origin_of_name' => " State of California, USA, where the element was first synthesized",
    'group' => 'N/A',
    'period' => '7',
    'weight' => '[251]1',
    'density' => '15.1',
    'melt' => '1925.15',
    'heat' => '–',
    'neg' => '1.3',
    'abundance' => ' <0.001',
},
'einsteinium' => {
    'Z' => '99',
    'symbol' => 'Es',
    'name' => 'Einsteinium',
    'origin_of_name' => " Albert Einstein, physicist",
    'group' => 'N/A',
    'period' => '7',
    'weight' => '[252]1',
    'density' => '13.5',
    'melt' => '1133.15',
    'heat' => '–',
    'neg' => '1.3',
    'abundance' => ' 0 8',
},
'fermium' => {
    'Z' => '100',
    'symbol' => ' Fm',
    'name' => 'Fermium',
    'origin_of_name' => " Enrico Fermi, physicist",
    'group' => 'N/A',
    'period' => ' 7',
    'weight' => '[257]1',
    'density' => '–',
    'melt' => '1800',
    'heat' => '–',
    'neg' => '1.3',
    'abundance' => ' 0 8',
},
'mendelevium' => {
    'Z' => '101',
    'symbol' => ' Md',
    'name' => 'Mendelevium',
    'origin_of_name' => " Dmitri Mendeleyev, chemist and inventor",
    'group' => 'N/A',
    'period' => ' 7',
    'weight' => '[258]1',
    'density' => '–',
    'melt' => '1100',
    'heat' => '–',
    'neg' => '1.3',
    'abundance' => ' 0 8',
},
'nobelium' => {
    'Z' => '102',
    'symbol' => ' No',
    'name' => 'Nobelium',
    'origin_of_name' => "Alfred Nobel, chemist, engineer, innovator, and armaments manufacturer",
    'group' => 'N/A',
    'period' => '7',
    'weight' => '[259]1',
    'density' => '–',
    'melt' => '1100',
    'heat' => '–',
    'neg' => '1.3',
    'abundance' => ' 0 8',
},
'lawrencium' => {
    'Z' => '103',
    'symbol' => ' Lr',
    'name' => 'Lawrencium',
    'origin_of_name' => "Ernest O. Lawrence, physicist",
    'group' => '3',
    'period' => '7',
    'weight' => '[262]1',
    'density' => '–',
    'melt' => '1900',
    'heat' => '–',
    'neg' => '1.3',
    'abundance' => ' 0 8',
},
'rutherfordium' => {
    'Z' => '104',
    'symbol' => ' Rf',
    'name' => 'Rutherfordium',
    'origin_of_name' => "Ernest Rutherford, chemist and physicist",
    'group' => '4',
    'period' => '7',
    'weight' => '[267]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'dubnium' => {
    'Z' => '105',
    'symbol' => ' Db',
    'name' => 'Dubnium',
    'origin_of_name' => " Dubna, Russia",
    'group' => '5',
    'period' => '7',
    'weight' => '[268]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'seaborgium' => {
    'Z' => '106',
    'symbol' => ' Sg',
    'name' => 'Seaborgium',
    'origin_of_name' => "Glenn T. Seaborg, scientist",
    'group' => ' 6',
    'period' => '7',
    'weight' => '[269]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'bohrium' => {
    'Z' => '107',
    'symbol' => ' Bh',
    'name' => 'Bohrium',
    'origin_of_name' => " Niels Bohr, physicist",
    'group' => '7',
    'period' => '7',
    'weight' => '[270]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'hassium' => {
    'Z' => '108',
    'symbol' => ' Hs',
    'name' => 'Hassium',
    'origin_of_name' => " Hesse, Germany, where the element was first synthesized",
    'group' => ' 8',
    'period' => '7',
    'weight' => '[269]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'meitnerium' => {
    'Z' => '109',
    'symbol' => ' Mt',
    'name' => 'Meitnerium',
    'origin_of_name' => "Lise Meitner, physicist",
    'group' => ' 9',
    'period' => '7',
    'weight' => '[278]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'darmstadtium' => {
    'Z' => '110',
    'symbol' => ' Ds',
    'name' => 'Darmstadtium',
    'origin_of_name' => "Darmstadt, Germany, where the element was first synthesized",
    'group' => ' 10',
    'period' => '7',
    'weight' => '[281]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'roentgenium' => {
    'Z' => '111',
    'symbol' => ' Rg',
    'name' => 'Roentgenium',
    'origin_of_name' => " Wilhelm Conrad Röntgen, physicist",
    'group' => '11',
    'period' => '7',
    'weight' => '[281]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'copernicium' => {
    'Z' => '112',
    'symbol' => ' Cn',
    'name' => 'Copernicium',
    'origin_of_name' => " Nicolaus Copernicus, astronomer",
    'group' => ' 12',
    'period' => '7',
    'weight' => '[285]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'ununtrium' => {
    'Z' => '113',
    'symbol' => ' Uut',
    'name' => ' Ununtrium',
    'origin_of_name' => "IUPAC systematic element name",
    'group' => '13',
    'period' => '7',
    'weight' => '[286]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'flerovium' => {
    'Z' => '114',
    'symbol' => ' Fl',
    'name' => 'Flerovium',
    'origin_of_name' => "Georgy Flyorov, physicist",
    'group' => '14',
    'period' => '7',
    'weight' => '[289]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'ununpentium' => {
    'Z' => '115',
    'symbol' => ' Uup',
    'name' => ' Ununpentium',
    'origin_of_name' => " IUPAC systematic element name",
    'group' => '15',
    'period' => '7',
    'weight' => '[288]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'livermorium' => {
    'Z' => '116',
    'symbol' => ' Lv',
    'name' => 'Livermorium',
    'origin_of_name' => " Lawrence Livermore National Laboratory, within the city of Livermore, California, USA, which collaborated with JINR on the discovery of the element",
    'group' => ' 16',
    'period' => '7',
    'weight' => '[293]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'ununseptium' => {
    'Z' => '117',
    'symbol' => ' Uus',
    'name' => ' Ununseptium',
    'origin_of_name' => " IUPAC systematic element name",
    'group' => '17',
    'period' => '7',
    'weight' => '[294]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
'ununoctium' => {
    'Z' => '118',
    'symbol' => ' Uuo',
    'name' => ' Ununoctium',
    'origin_of_name' => "IUPAC systematic element name",
    'group' => '18',
    'period' => '7',
    'weight' => '[294]1',
    'density' => '–',
    'melt' => '–',
    'heat' => '–',
    'neg' => '–',
    'abundance' => '0 8',
},
);