I A
1
1
H
1.0079
IIA
TECHNOLOGY
IIIA
IVA
VA
VIA
VIIA
2
He
4.0026
2
3
Li
6.941
4
Be
9.0122
5
B
10.811
6
C
12.011
7
N
14.007
8
O
15.999
9
F
18.998
10
Ne
20.17
3
11
Na
22.9898
12
Mg
24.305
IIIB
IVB
VB
VIB
VIIB
VIII
IB
IIB
13
Al
26.982
14
Si
28.085
15
P
30.974
16
S
32.06
17
Cl
35.453
18
Ar
39.94
4
19
K
39.098
20
Ca
40.08
21
Sc
44.956
22
Ti
47.9
23
V
50.9415
24
Cr
51.996
25
Mn
54.938
26
Fe
55.84
27
Co
58.9332
28
Ni
58.69
29
Cu
63.54
30
Zn
65.38
31
Ga
69.72
32
Ge
72.59
33
As
74.9216
34
Se
78.9
35
Br
79.904
36
Kr
83.8
5
37
Rb
85.467
38
Sr
87.62
39
Y
88.906
40
Zr
91.22
41
Nb
92.9064
42
Mo
95.94
43
Tc
99
44
Ru
101.07
45
Rh
102.906
46
Pd
106.42
47
Ag
107.868
48
Cd
112.41
49
In
114.82
50
Sn
118.6
51
Sb
121.7
52
Te
127.6
53
I
126.905
54
Xe
131.3
6
55
Cs
132.905
56
Ba
137.33
57-71
La-Lu
72
Hf
178.4
73
Ta
180.947
74
W
183.8
75
Re
186.207
76
Os
190.2
77
Ir
192.2
78
Pt
195.08
79
Au
196.967
80
Hg
200.5
81
Tl
204.3
82
Pb
207.2
83
Bi
208.98
84
Po
(209)
85
At
(201)
86
Rn
(222)
7
87
Fr
(223)
88
Ra
226.03
89-103
Ac-Lr
104
Rf
(261)
105
Db
(262)
106
Sg
(266)
107
Bh
(264)
108
Hs
(269)
109
Mt
(268)
110
Ds
(271)
111
Rg
(272)
112
Uub
(285)
113
Uut
(284)
114
Uuq
(289)
115
Uup
(288)
116
Uuh
(292)
117
Uus
118
Uuo
57-71
La-Lu
57
La
138.905
58
Ce
140.12
59
Pr
140.91
60
Nd
144.2
61
Pm
147
62
Sm
150.4
63
Eu
151.96
64
Gd
157.25
65
Tb
158.93
66
Dy
162.5
67
Ho
164.93
68
Er
167.2
69
Tm
168.934
70
Yb
173.0
71
Lu
174.96
89-103
Ac-Lr
89
Ac
(227)
90
Th
232.03
91
Pa
231.03
92
U
238.02
93
Np
237.04
94
Pu
(244)
95
Am
(243)
96
Cm
(247)
97
Bk
(247)
98
Cf
(251)
99
Es
(254)
100
Fm
(257)
101
Md
(258)
102
No
(259)
103
Lr
(260)