|
1
H
Hydrogène
1,00794
|
2
He
Hélium
4,002602
|
||||||||||||||||
|
3
Li
Lithium
6,941
|
4
Be
Béryllium
9,012182
|
5
B
Bore
10,811
|
6
C
Carbone
12,011
|
7
N
Azote
14,00674
|
8
O
Oxygène
15,9994
|
9
F
Fluor
18,9984032
|
10
Ne
Néon
20,1797
|
||||||||||
|
11
Na
Sodium
22,989768
|
12
Mg
Magnésium
24,305
|
13
Al
Aluminium
26,981539
|
14
Si
Silicium
28,0855
|
15
P
Phosphore
30,973762
|
16
S
Soufre
32,066
|
17
Cl
Chlore
35,4527
|
18
Ar
Argon
39,948
|
||||||||||
|
19
K
Potassium
39,0983
|
20
Ca
Calcium
40,078
|
21
Sc
Scandium
44,95591
|
22
Ti
Titane
47,88
|
23
V
Vanadium
50,9415
|
24
Cr
Chrome
51,9961
|
25
Mn
Manganèse
54,93805
|
26
Fe
Fer
55,847
|
27
Co
Cobalt
58,9332
|
28
Ni
Nickel
58,69
|
29
Cu
Cuivre
63,546
|
30
Zn
Zinc
65,39
|
31
Ga
Gallium
69,723
|
32
Ge
Germanium
72,61
|
33
As
Arsenic
74,92159
|
34
Se
Sélénium
78,96
|
35
Br
Brome
79,904
|
36
Kr
Krypton
83,8
|
|
37
Rb
Rubidium
85,4678
|
38
Sr
Strontium
87,62
|
39
Y
Yttrium
88,90585
|
40
Zr
Zirconium
91,224
|
41
Nb
Niobium
92,90638
|
42
Mo
Molybdène
95,94
|
43
Tc
Technétium
98,9063
|
44
Ru
Ruthénium
101,07
|
45
Rh
Rhodium
102,9055
|
46
Pd
Palladium
106,42
|
47
Ag
Argent
107,8682
|
48
Cd
Cadmium
112,411
|
49
In
Indium
114,82
|
50
Sn
Étain
118,71
|
51
Sb
Antimoine
121,75
|
52
Te
Tellure
127,6
|
53
I
Iode
126,90447
|
54
Xe
Xénon
131,29
|
|
55
Cs
Césium
132,90543
|
56
Ba
Baryum
137,327
|
72
Hf
Hafnium
178,49
|
73
Ta
Tantale
180,9479
|
74
W
Tungstène
183,85
|
75
Re
Rhénium
186,207
|
76
Os
Osmium
190,2
|
77
Ir
Iridium
192,22
|
78
Pt
Platine
195,08
|
79
Au
Or
196,96654
|
80
Hg
Mercure
200,59
|
81
Tl
Thallium
204,3833
|
82
Pb
Plomb
207,2
|
83
Bi
Bismuth
208,98037
|
84
Po
Polonium
208,9824
|
85
At
Astate
209,9871
|
86
Rn
Radon
222,0176
|
|
|
87
Fr
Francium
223,0197
|
88
Ra
Radium
226,0254
|
104
Rf
Rutherfordium
261,1087
|
105
Db
Dubnium
262,1138
|
106
Sg
Seaborgium
263,1182
|
107
Bh
Bohrium
262,1229
|
108
Hs
Hassium
265
|
109
Mt
Meitnérium
266
|
110
Ds
Darmstadtium
269
|
111
Rg
Roentgenium
272
|
112
Cn
Copernicium
277
|
113
Nh
Nihonium
|
114
Fl
Flérovium
|
115
Mc
Moscovium
|
116
Lv
Livermorium
|
117
Ts
Tennesse
|
118
Og
Oganesson
|
|
|
57
La
Lanthane
138,9055
|
58
Ce
Cérium
140,115
|
59
Pr
Praséodyme
140,90765
|
60
Nd
Néodyme
144,24
|
61
Pm
Prométhium
146,9151
|
62
Sm
Samarium
150,36
|
63
Eu
Europium
151,965
|
64
Gd
Gadolinium
157,25
|
65
Tb
Terbium
158,92534
|
66
Dy
Dysprosium
162,5
|
67
Ho
Holmium
164,93032
|
68
Er
Erbium
167,26
|
69
Tm
Thulium
168,93421
|
70
Yb
Ytterbium
173,04
|
71
Lu
Lutécium
174,967
|
|||
|
89
Ac
Actinium
227,0278
|
90
Th
Thorium
232,0381
|
91
Pa
Protactinium
231,0359
|
92
U
Uranium
238,0289
|
93
Np
Neptunium
237,0482
|
94
Pu
Plutonium
244,0642
|
95
Am
Américium
243,0614
|
96
Cm
Curium
247,0703
|
97
Bk
Berkélium
247,0703
|
98
Cf
Californium
251,0796
|
99
Es
Einsteinium
252,0829
|
100
Fm
Fermium
257,0951
|
101
Md
Mendélévium
258,0986
|
102
No
Nobélium
259,1009
|
103
Lr
Lawrencium
260,1053
|