Masse Atomique
Pour les éléments qui n'ont pas de nucléides stables, la valeur entre
parenthèses indique le nombre de masse de l'isotope de l'élément ayant la durée
de vie la plus grande.
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1 |
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18 |
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1 |
H 1,008 |
2 |
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13 |
14 |
15 |
16 |
17 |
He 4,003 |
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2 |
Li 6,941 |
Be 9,012 |
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B 10,811 |
C 12,010 |
N 14,007 |
O 15,999 |
F 18,998 |
Ne 20,179 |
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3 |
Na 22,989 |
Mg 24,305 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
Al 26,981 |
Si 28,085 |
P 30,974 |
S 32,065 |
Cl 35,453 |
Ar 39,948 |
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4 |
K 39,098 |
Ca 40,078 |
Sc 44,956 |
Ti 47,867 |
V 50,941 |
Cr 51,996 |
Mn 54,938 |
Fe 55,845 |
Co 58,933 |
Ni 58,693 |
Cu 63,546 |
Zn 65,39 |
Ga 69,723 |
Ge 72,64 |
As 74,921 |
Se 78,96 |
Br 79,904 |
Kr 83,80 |
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5 |
Rb 85,467 |
Sr 87,62 |
Y 88,906 |
Zr 91,224 |
Nb 92,906 |
Mo 95,94 |
Tc 98 |
Ru 101,07 |
Rh 102,91 |
Pd 106,42 |
Ag 107,86 |
Cd 112,41 |
In 114,82 |
Sn 118,71 |
Sb 121,76 |
Te 127,60 |
I 126,90 |
Xe 131,29 |
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6 |
Cs 132,91 |
Ba 137,33 |
La-Lu |
Hf 178,49 |
Ta 180,95 |
W 183,84 |
Re 186,21 |
Os 190,23 |
Ir 192,22 |
Pt 195,08 |
Au 196,97 |
Hg 200,59 |
Tl 204,38 |
Pb 207,2 |
Bi 208,98 |
Po [209] |
At [210] |
Rn [222] |
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7 |
Fr [223] |
Ra [226] |
Ac-Lr |
Rf [261] |
Db [262] |
Sg [266] |
Bh [264] |
Hs [277] |
Mt [268] |
Ds [281] |
Rg [272] |
Cn[285] |
Nh[286] |
Fl[289] |
Mc[292] |
Lv[293] |
Ts[294] |
Og[294] |
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3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
|
6 |
La 138,91 |
Ce 140,12 |
Pr 140,91 |
Nd 144,24 |
Pm [145] |
Sm 150,36 |
Eu 151,96 |
Gd 157,25 |
Tb 158,93 |
Dy 162,50 |
Ho 164,93 |
Er 167,26 |
Tm 168,93 |
Yb 173,04 |
Lu 174,97 |
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3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
|
7 |
Ac [227] |
Th 232,038 |
Pa 231,04 |
U 238,03 |
Np [237] |
Pu [244] |
Am [243] |
Cm [247] |
Bk [247] |
Cf [251] |
Es [252] |
Fm [257] |
Md [258] |
No [259] |
Lr [262] |