1

1H
1.0079

Tableau périodique des éléments.

2

2He
4.0026

2
1

3Li
6.941

2
2

4Be
9.0122

2
3

5B
10.81

2
4

6C
12.011

2
5

7N14.0067

2
6

8O
15.9994

2
7

9F
18.9984

2
8

10Ne
20.179

2
8
1

11Na22.9898

2
8
2

12Mg
24.305

2
8
3

13Al
26.9815

2
8
4

14Si
28.086

2
8
5

15P
30.9738

2
8
6

16S
32.06

2
8
7

17Cl
35.453

2
8
8

18Ar
39.948

2
8
8
1

19K39.102

2
8
8
2

20Ca
40.08

2
8
9
2

21Sc
44.9559

2
8
10
2

22Ti
47.9

2
8
11
2

23V
50.9414

2
8
13
1

24Cr
51.996

2
8
13
2

25Mn
54.938

2
8
14
2

26Fe
55.938

2
8
15
2

27Co
58.9332

2
8
16
2

28Ni
58.7

2
8
18
1

29Cu
63.546

2
8
18
2

30Zn
65.38

2
8
18
3

31Ga
69.72

2
8
18
4

32Ge
72.59

2
8
18
5

33As
74.9216

2
8
18
6

34Se
78.96

2
8
18
7

35Br
35.453

2
8
18
8

36Kr
83.8

2
8
18
8
1

37Rb
85.4678

2
8
18
8
2

38Sr
87.62

2
8
18
9
2

39Y
88.9059

2
8
18
10
2

40Zr
91.22

2
8
18
12
1

41Nb92.9064

2
8
18
13
1

42Mo
95.94

2
8
18
13
2

43Tc
98.9062

2
8
18
15
1

44Ru
101.07

2
8
18
16
1

45Rh
102.906

2
8
18
18

46Pd
106.4

2
8
18
18
1

47Ag
107.868

2
8
18
18
2

48Cd
112.4

2
8
18
18
3

49In
114.82

2
8
18
18
4

50Sn118.69

2
8
18
18
5

51Sb121.75

2
8
18
18
6

52Te
127.6

2
8
18
18
7

53I
126.905

2
8
18
18
8

54Xe
131.3

2
8
18
18
8
1

55Cs
132.905

2
8
18
18
8
2

56Ba
137.34

*

2
8
18
32
10
2

72Hf
178.49

2
8
18
32
11
2

73Ta
180.948

2
8
18
32
12
2

74W183.85

2
8
18
32
13
2

75Re
186.207

2
8
18
32
14
2

76Os
190.2

2
8
18
32
15
2

77Ir
192.22

2
8
18
32
17
1

78Pt
195.09

2
8
18
32
18
1

79Au196.967

2
8
18
32
18
2

80Hg200.59

2
8
18
32
18
3

81Tl
204.37

2
8
18
32
18
4

82Pb
207.2

2
8
18
32
18
5

83Bi
208.98

2
8
18
32
18
6

84Po
209

2
8
18
32
18
7

85At
210

2
8
18
32
18
8

86Rn
222

2
8
18
32
18
8
1

87Fr
223

2
8
18
32
18
8
2

88Ra
226.025

**

2
8
18
32
32
10
2

104Rf
261

2
8
18
32
32
11
2

105Db
262

2
8
18
32
32
12
2

106Sg
263

2
8
18
32
32
13
2

107Bh
262

2
8
18
32
32
14
2

108Hs
265

2
8
18
32
32
15
2

109Mt
266

2
8
18
32
32
17
1

110Ds
281

2
8
18
32
32
18
1

111Rg
280

2
8
18
32
32
18
2

112Cn
285

2
8
18
32
32
18
3

113Uut
284

2
8
18
32
32
18
4

114Fl
289

2
8
18
32
32
18
5

115Uup
288

2
8
18
32
32
18
6

116Lv
293

2
8
18
32
32
18
7

117Uus
291

2
8
18
32
32
18
8

118Uuo
294

*

2
8
18
18
9
2

57La
138.906

2
8
18
20
8
2

58Ce
140.12

2
8
18
21
8
2

59Pr
140.908

2
8
18
22
8
2

60Nd
144.24

2
8
18
23
8
2

61Pm
146.92

2
8
18
24
8
2

62Sm
150.4

2
8
18
25
8
2

63Eu
151.96

2
8
18
25
9
2

64Gd
157.25

2
8
18
27
8
2

65Tb
158.925

2
8
18
28
8
2

66Dy
162.5

2
8
18
29
8
2

67Ho
164.934

2
8
18
31
8
2

68Er
167.26

2
8
18
31
8
2

69Tm
168.934

2
8
18
32
8
2

70Yb
173.04

2
8
18
32
9
2

71Lu
174.97

**

2
8
18
32
18
9
2

89Ac
227.03

2
8
18
32
18
10
2

90Th
232.038

2
8
18
32
20
9
2

91Pa
231.036

2
8
18
32
21
9
2

92U
238.029

2
8
18
32
22
9
2

93Np
237.048

2
8
18
32
24
8
2

94Pu
239.05

2
8
18
32
25
9
2

95Am
241.06

2
8
18
32
25
9
2

96Cm
247.07

2
8
18
32
27
8
2

97Bk
249.08

2
8
18
32
28
8
2

98Cf
251.08

2
8
18
32
29
8
2

99Es
254.09

2
8
18
32
30
8
2

100Fm
257.1

2
8
18
32
31
8
2

101Md
258.1

2
8
18
32
32
8
2

102No
255

2
8
18
32
32
9
2

103Lr
262.1