Tableau Périodique
1
1.01
H
Hydrogène
2
4.00
He
Hélium
3
6.94
Li
Lithium
4
9.01
Be
Béryllium
5
10.81
B
Bore
6
12.01
C
Carbone
7
14.01
N
Azote
8
16.00
O
Oxygène
9
19.00
F
Fluor
10
20.18
Ne
Néon
11
22.99
Na
Sodium
12
24.30
Mg
Magnésium
13
26.98
Al
Aluminium
14
28.09
Si
Silicium
15
30.97
P
Phosphore
16
32.06
S
Soufre
17
35.45
Cl
Chlore
18
39.95
Ar
Argon
19
39.10
K
Potassium
20
40.08
Ca
Calcium
21
44.96
Sc
Scandium
22
47.87
Ti
Titane
23
50.94
V
Vanadium
24
52.00
Cr
Chrome
25
54.94
Mn
Manganèse
26
55.84
Fe
Fer
27
58.93
Co
Cobalt
28
58.69
Ni
Nickel
29
63.55
Cu
Cuivre
30
65.38
Zn
Zinc
31
69.72
Ga
Gallium
32
72.63
Ge
Germanium
33
74.92
As
Arsenic
34
78.97
Se
Sélénium
35
79.90
Br
Brome
36
83.80
Kr
Krypton
37
85.47
Rb
Rubidium
38
87.62
Sr
Strontium
39
88.91
Y
Yttrium
40
91.22
Zr
Zirconium
41
92.91
Nb
Niobium
42
95.95
Mo
Molybdène
43
97.91
Tc
Technétium
44
101.07
Ru
Ruthénium
45
102.91
Rh
Rhodium
46
106.42
Pd
Palladium
47
107.87
Ag
Argent
48
112.41
Cd
Cadmium
49
114.82
In
Indium
50
118.71
Sn
Étain
51
121.76
Sb
Antimoine
52
127.60
Te
Tellure
53
126.90
I
Iode
54
131.29
Xe
Xénon
55
132.91
Cs
Césium
56
137.33
Ba
Baryum
71
174.97
Lu
Lutécium
72
178.49
Hf
Hafnium
73
180.95
Ta
Tantale
74
183.84
W
Tungstène
75
186.21
Re
Rhénium
76
190.23
Os
Osmium
77
192.22
Ir
Iridium
78
195.08
Pt
Platine
79
196.97
Au
Or
80
200.59
Hg
Mercure
81
204.38
Tl
Thallium
82
207.20
Pb
Plomb
83
208.98
Bi
Bismuth
84
209.00
Po
Polonium
85
210.00
At
Astate
86
222.00
Rn
Radon
87
223.00
Fr
Francium
88
226.00
Ra
Radium
103
262.00
Lr
Lawrencium
104
267.00
Rf
Rutherfordium
105
268.00
Db
Dubnium
106
271.00
Sg
Seaborgium
107
274.00
Bh
Bohrium
108
269.00
Hs
Hassium
109
276.00
Mt
Meitnérium
110
281.00
Ds
Darmstadtium
111
281.00
Rg
Roentgenium
112
285.00
Cn
Copernicium
113
286.00
Nh
Nihonium
114
289.00
Fl
Flérovium
115
288.00
Mc
Moscovium
116
293.00
Lv
Livermorium
117
294.00
Ts
Tennesse
118
294.00
Og
Oganesson
*
57-71
**
89-103
* Lanthanides
57
138.91
La
Lanthane
58
140.12
Ce
Cérium
59
140.91
Pr
Praséodyme
60
144.24
Nd
Néodyme
61
144.91
Pm
Prométhium
62
150.36
Sm
Samarium
63
151.96
Eu
Europium
64
157.25
Gd
Gadolinium
65
158.93
Tb
Terbium
66
162.50
Dy
Dysprosium
67
164.93
Ho
Holmium
68
167.26
Er
Erbium
69
168.93
Tm
Thulium
70
173.04
Yb
Ytterbium
** Actinides
89
227.00
Ac
Actinium
90
232.04
Th
Thorium
91
231.04
Pa
Protactinium
92
238.03
U
Uranium
93
237.00
Np
Neptunium
94
244.00
Pu
Plutonium
95
243.00
Am
Américium
96
247.00
Cm
Curium
97
247.00
Bk
Berkélium
98
251.00
Cf
Californium
99
252.00
Es
Einsteinium
100
257.00
Fm
Fermium
101
258.00
Md
Mendélévium
102
259.00
No
Nobélium