Hydrogen1,00794
Helium4,002602
Lithium6,941
Beryllium9,012182
Bor10,811
Carbon12,011
Nitrogen14,00674
Oxygen15,9994
Fluor18,9984032
Neon20,1797
Natrium22,98768
Magnesium24,3050
Aluminium26,981539
Silicium28,0855
Fosfor30,973762
Svovl32,066
Klor35,4527
Kalium39,0983
Argon39,948
Calcium40,078
Scandium44,955910
Titan47,88
Vanadium50,9415
Krom51,9961
Mangan54,93805
Jern55,847
Nikkel58,69
Kobolt58,93320
Kobber63,546
Zink65,39
Gallium69,723
Germanium72,61
Arsen74,92159
Selenium78,96
Brom79,904
Krypton83,8
Rubidium85,4678
Strontium87,62
Yttrium88,90585
Zirconium91,244
Niobium92,90638
Molybdenum95,94
Technetium98,9063
Ruthenium101,07
Rhodium102,90550
Palladium106,42
Sølv107,8682
Cadmium112,411
Indium114,82
Tin118,710
Antimon121,75
Jod126,90447
Tellur127,60
Xenon131,29
Cæsium132,90543
Barium137,327
Lanthanum138,9055
Cerium140,115
Praseodymium140,90765
Neodymium144,24
Promethium146,9151
Samarium150,36
Europium151,965
Gadolinium157,25
Terbium158,92534
Dysprosium162,50
Holmium164,93032
Erbium167,26
Thulium168,93421
Ytterbium173,04
Lutetium174,967
Hafnium178,49
Tantalum180,9479
Wolfram183,85
Rhenium186,207
Osmium190,2
Iridium192,22
Platin195,08
Guld196,96654
Kviksølv200,59
Thallium204,3833
Bly207,2
Bismuth208,98037
Polonium208,9824
Astat209,9871
Radon222,0176
Francium223,019
Radium226,0254
Actinium227,0278
Protactinium231,0359
Thorium232,0381
Neptunium237,0482
Uranium238,0289
Americium243,0614
Plutonium244,0642
Berkelium247,0703
Curium247,0704
Californium251,0796
Einsteinium252,0829
Fermium257,0951
Mendelevium258,0986
Nobelium259,1009
Lawrencium260,1053
Rutherfordium261,1087
Dubnium262,1138
Bohrium262,1229
Seaborgium263,9182
Hassium265
Meitnerium266
Darmstadtium281
Røntgenium281
Copernicium285
Nihonium286
Flerovium289
Moscovium289
Livermorium293
Tennessine294
Oganesson294