|
Atomic Number
Symbol
Atomic Mass
(Approx values in parentheses) |
| IA |
IIA |
IIIB |
IVB |
VB |
VIB |
VIIB |
VIII |
VIII |
VIII |
IB |
IIB |
IIIA |
IVA |
VA |
VIA |
VIIA |
0 |
| IA |
IIA |
IIIA |
IVA |
VA |
VIA |
VIIA |
VIII |
VIII |
VIII |
IB |
IIB |
IIIB |
IVB |
VB |
VIB |
VIIB |
0 |
| 1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
| 1
H
1.0080 |
|
2
He
4.00260 |
| 3
Li
6.941 |
4
Be
9.01218 |
|
5
B
10.81 |
6
C
12.011 |
7
N
14.0067 |
8
O
15.9994 |
9
F
18.9984 |
10
Ne
20.179 |
| 11
Na
22.9898 |
12
Mg
24.305 |
13
Al
26.9815 |
14
Si
28.086 |
15
P
30.9738 |
16
S
32.06 |
17
Cl
35.453 |
18
Ar
39.948 |
| 19
K
39.102 |
20
Ca
40.08 |
21
Sc
44.9559 |
22
Ti
47.90 |
23
V
50.9414 |
24
Cr
51.996 |
25
Mn
54.9380 |
26
Fe
55.847 |
27
Co
58.9332 |
28
Ni
58.71 |
29
Cu
63.546 |
30
Zn
65.37 |
31
Ga
69.72 |
32
Ge
72.59 |
33
As
74.9216 |
34
Se
78.96 |
35
Br
79.904 |
36
Kr
83.80 |
| 37
Rb
85.4678 |
38
Sr
87.62 |
39
Y
88.9059 |
40
Zr
91.22 |
41
Nb
92.9064 |
42
Mo
95.94 |
43
Tc
98.9062 |
44
Ru
101.07 |
45
Rh
102.9055 |
46
Pd
106.4 |
47
Ag
107.868 |
48
Cd
112.40 |
49
In
114.82 |
50
Sn
118.69 |
51
Sb
121.75 |
52
Te
127.60 |
53
I
126.9045 |
54
Xe
131.30 |
| 55
Cs
132.9055 |
56
Ba
137.34 |
|
72
Hf
178.49 |
73
Ta
180.9479 |
74
W
183.85 |
75
Re
186.2 |
76
Os
190.2 |
77
Ir
192.22 |
78
Pt
195.09 |
79
Au
196.9665 |
80
Hg
200.59 |
81
Tl
204.37 |
82
Pb
207.2 |
83
Bi
208.9806 |
84
Po
(210) |
85
At
(210) |
86
Rn
(222) |
| 87
Fr
(223) |
88
Ra
226.0254 |
|
104
Unq
(261) |
105
Unp
(262) |
106
Unh
(263) |
|
| 57
La
138.9055 |
58
Ce
140.12 |
59
Pr
140.9077 |
60
Nd
144.24 |
61
Pm
(145) |
62
Sm
150.4 |
63
Eu
151.96 |
64
Gd
157.25 |
65
Tb
158.9254 |
66
Dy
162.50 |
67
Ho
164.9303 |
68
Er
167.26 |
69
Tm
168.9342 |
70
Yb
173.04 |
71
Lu
174.97 |
| 89
Ac
(227) |
90
Th
232.0381 |
91
Pa
231.0359 |
92
U
238.029 |
93
Np
237.0482 |
94
Pu
(242) |
95
Am
(243) |
96
Cm
(247) |
97
Bk
(249) |
98
Cf
(251) |
99
Es
(254) |
100
Fm
(253) |
101
Md
(256) |
102
No
(254) |
103
Lr
(257) |
|
