1-Ia

2-IIa

3-IIIb

4-IVb

5-Vb

6-VIb

7-VIIb

8-VIII

9-VIII

10-VIII

11-Ib

12-IIb

13-IIIa

14-IVa

15-Va

16-VIa

17-VIIa

18-VIIIa

H Waterstof 1 1.00794

He Helium 2 4.002602

Li Lithium 3 6.941

Be Beryllium 4 9.012182

B Boor 5 10.811

C Koolstof 6 12.0107

N Stikstof 7 14.0067

O Zuurstof 8 15.9994

F Fluor 9 18.9984032

Ne Neon 10 20.1797

Na Natrium 11 22.989770

Mg Magnesium 12 24.3050

Al Aluminium 13 26.981538

Si Silicium 14 28.0855

P Fosfor 15 30.973761

S Zwavel 16 32.065

Cl Chloor 17 35.453

Ar Argon 18 39.948

K Kalium 19 39.0983

Ca Calcium 20 40.078

Sc Scandium 21 44.955910

Ti Titaan 22 47.867

V Vanadium 23 50.9415

Cr Chroom 24 51.9961

Mn Mangaan 25 54.938049

Fe IJzer 26 55.845

Co Kobalt 27 58.933200

Ni Nikkel 28 58.6934

Cu Koper 29 63.546

Zn Zink 30 65.409

Ga Gallium 31 69.723

Ge Germanium 32 72.64

As Arseen 33 74.92160

Se Seleen 34 78.96

Br Broom 35 79.904

Kr Krypton 36 83.798

Rb Rubidium 37 85.4678

Sr Strontium 38 87.62

Y Yttrium 39 88.90585

Zr Zirkoon 40 91.224

Nb Niobium 41 92.90638

Mo Molybdeen 42 95.94

Tc Technetium 43 [97.907216] 4.2 Mj

Ru Ruthenium 44 101.07

Rh Rhodium 45 102.90550

Pd Palladium 46 106.42

Ag Zilver 47 107.8682

Cd Cadmium 48 112.411

In Indium 49 114.818

Sn Tin 50 118.710

Sb Antimoon 51 121.760

Te Telluur 52 127.60

I Jood 53 126.90447

Xe Xenon 54 131.293

Cs Cesium 55 132.90545

Ba Barium 56 137.327

La Lanthaan 57 138.9055

Hf Hafnium 72 178.49

Ta Tantaal 73 180.9479

W Wolfraam 74 183.84

Re Rhenium 75 186.207

Os Osmium 76 190.23

Ir Iridium 77 192.217

Pt Platina 78 195.078

Au Goud 79 196.96655

Hg Kwik 80 200.59

Tl Thallium 81 204.3833

Pb Lood 82 207.2

Bi Bismut 83 208.98038

Po Polonium 84 [208.982415] 102 j

At Astaat 85 [209.987131] 8.1 u

Rn Radon 86 [222.017570] 3.8235 d

Fr Francium 87 [223.019731] 21.8 m

Ra Radium 88 [226.025403] 1600 j

Ac Actinium 89 [227.027747] 21.773 j

Rf Rutherfordium 104 [261.1088] 65 s

Db Dubnium 105 [262.1141] 34 s

Sg Seaborgium 106 [266.1220] 21 s

Bh Bohrium 107 [264.1247] 440 ms

Hs Hassium 108 [277] 12 m

Mt Meitnerium 109 [268.1388] 70 ms

110 Element-110 110 [281] 1.1 m

111 Element-111 111 [272.1535] 1.5 ms

112 Element-112 112 [285] 10 m

113 Element-113 113 []

114 Element-114 114 [289] 21 s

115 Element-115 115 []

116 Element-116 116 []

117 Element-117 117 []

118 Element-118 118 []

Lanthaniden

Ce Cerium 58 140.116

Pr Praseodymium 59 140.90765

Nd Neodymium 60 144.24

Pm Promethium 61 [144.912743] 17.7 j

Sm Samarium 62 150.36

Eu Europium 63 151.964

Gd Gadolinium 64 157.25

Tb Terbium 65 158.92534

Dy Dysprosium 66 162.500

Ho Holmium 67 164.93032

Er Erbium 68 167.259

Tm Thulium 69 168.93421

Yb Ytterbium 70 173.04

Lu Lutetium 71 174.967

Actiniden

Th Thorium 90 232.0381 1.405 Mj

Pa Protactinium 91 231.03588 32760 j

U Uraan 92 238.02891 4.468 Gj

Np Neptunium 93 [237.048167] 2.144 Mj

Pu Plutonium 94 [244.064198] 80.8 Mj

Am Americium 95 [243.061373] 7370 j

Cm Curium 96 [247.070347] 15.6 Mj

Bk Berkelium 97 [247.070299] 1380 j

Cf Californium 98 [251.079580] 898 j

Es Einsteinium 99 [252.08297] 471.7 d

Fm Fermium 100 [257.095099] 100.5 d

Md Mendelevium 101 [258.0984] 51.5 d

No Nobelium 102 [259.1010] 58 m

Lr Lawrencium 103 [262.1097] 3.6 u