Formation chimie - atomistique :
Masses atomiques des éléments (atomes) classés par ordre alphabétique
(Atomic weights)
Basé sur la masse atomique du 12C (12)
Élément atomique | Abréviation | N° atomique | Masse atomique |
Actinium | Ac |
89 |
227,0278 |
Aluminum | Al |
13 |
26,981539(5) |
Americium | Am |
95 |
[243] |
Antimoine | Sb |
51 |
121,73(3) |
Argent | Ag |
47 |
39,948(1) |
Arsenic | As |
33 |
74,92159(2) |
Astate | At |
85 |
[210] |
Azote | N |
7 |
14,00674(7) |
Baryum | Ba |
56 |
137.,327(7) |
Berkelium | Bk |
97 |
[247] |
Berryllium | Be |
4 |
9,012182(3) |
Bismuth | Bi |
83 |
208,98037(3) |
Bore | B |
5 |
10,811(5) |
Brome | Br |
35 |
79,904(1) |
Cadmium | Cd |
48 |
112,411(8) |
Calcium | Ca |
20 |
40,078(4) |
Californium | Cf |
98 |
- |
Carbone | C |
6 |
12,011(1) |
Cerium | Ce |
58 |
140,115(4) |
Césium | Cs |
55 |
132,90543(5) |
Chlore | Cl |
17 |
35,4527(9) |
Chrome | Cr |
24 |
51,9961(6) |
Cobalt | Co |
27 |
58,93320(1) |
Cuivre | Cu |
29 |
63,546(3) |
Curium | Cm |
96 |
[247] |
Dysprosium | Dy |
66 |
162,50(3) |
Einsteinium | Es |
99 |
[252] |
Erbium | Er |
68 |
167,26(3) |
Etain | Sn |
50 |
118,710(7) |
Fer | Fe |
26 |
55,847(3) |
Fermium | Fm |
100 |
[257] |
Fluor | F |
9 |
18,9984032(9) |
Francium | Fr |
87 |
[223] |
Gadolinium | Gd |
64 |
157,25(3) |
Gallium | Ga |
31 |
69,723(1) |
Germanium | Ge |
32 |
72,61(2) |
Hafnium | Hf |
72 |
178,49(2) |
Holmium | Ho |
67 |
164,93032(3) |
Hydrogène | H |
1 |
1,00794(7) |
Indium | In |
49 |
114,82(1) |
Iode | I |
53 |
126,90447(3) |
Iridium | Ir |
77 |
192,22(3) |
Krypton | Kr |
36 |
83,80(1) |
Lanthane | La |
57 |
138,9055(2) |
Lawrencium | Lr |
103 |
[262] |
Lithium | Li |
3 |
6,941(2) |
Lutetium | Lu |
71 |
174,967(1) |
Magnésium | Mg |
12 |
24,3050(6) |
Manganèse | Mn |
25 |
54,93805(1) |
Mendelevium | Md |
101 |
[258] |
Mercure | Hg |
80 |
200,59(3) |
Molybdène | Mo |
42 |
95,94(1) |
Neodym | Nd |
60 |
114,24(3) |
Neptunium | Np |
93 |
237,0482 |
Nickel | Ni |
28 |
58,69(1) |
Niobium | Nb |
41 |
92,90638(2) |
Nobelium | No |
102 |
[259] |
Or | Au |
79 |
196,96654(3) |
Osmium | Os |
76 |
190,2(1) |
Oxygène | O |
8 |
15,9994(3) |
Palladium | Pd |
46 |
105,42(1) |
Phosphore | P |
15 |
30,973762(4) |
Platine | Pt |
78 |
195,08(3) |
Plomb | Pb |
82 |
207,2(1) |
Plutonium | Pu |
94 |
[244] |
Polonium | Po |
84 |
[209] |
Potassium | K |
19 |
39,0983(1) |
Praséodyme | Pr |
59 |
140,90765(3) |
Protactinium | Pa |
91 |
231,0359 |
Radium | Ra |
88 |
226,0254 |
Radon | Ra |
88 |
[222] |
Rhenium | Re |
75 |
186,207(1) |
Rhodium | Rh |
45 |
102,90550(3) |
Rubidium | Rb |
37 |
85,4678(3) |
Ruthenium | Ru |
44 |
101,07(2) |
Samarium | Sm |
62 |
150,36(3) |
Scandium | Sc |
21 |
44,955910(9) |
Sélénium | Se |
34 |
78,96(3) |
Silicium | Si |
14 |
28,0855(3) |
Sodium | Na |
11 |
22,989768(6) |
Soufre | S |
16 |
32,066(6) |
Strontium | Sr |
38 |
87,62(1) |
Tantale | Ta |
73 |
180,9479(1) |
Technetium | Tc |
43 |
[98] |
Tellure | Te |
52 |
127,60(3) |
Thallium | Tl |
81 |
204,3833(2) |
Thorium | Th |
90 |
232,0381(1) |
Thulium | Tm |
69 |
168,93421(3) |
Titane | Ti |
22 |
47,88(3) |
Tungstène | W |
74 |
183,85(3) |
Uranium | U |
92 |
238,0289(1) |
Vanadium | V |
23 |
50,9415(1) |
Xénon | Xe |
54 |
131,29(2) |
Yttrium | Y |
39 |
88,90585(2) |
Zinc | Zn |
30 |
65,39(2) |
Zirconium | Zr |
40 |
91,224(2) |
Les nombres entre parenthèse ( ) indiquent une incertitude sur le dernier chiffre
Les nombres entre crochets [ ] indiquent la masse atomique de l'isotope le plus stable
Ces valeurs sont conformes aux données de l'IUPAC