Ia IIa IIIb IVb Vb VIb VIIb VII Ib IIb IIa IVa Va VIa VIIa O
1
H
1.01
Hydrogen
                                2
He
4.00
Helium
3
Li
6.94
Lithium
4
Be
9.00
Beryllium
                    5
B
10.8
Boron
6
C
12.0
Carbon
7
N
14.0
Nitrogen
8
O
16.0
Oxigen
9
F
19.0
Fluorine
10
Ne
20.2
Neon
11
Na
23.0
Sodium
12
Mg
24.0
Magnesium
                    13
Al
27.0
Aluminium
14
Si
28.1
Silicon
15
P
31.0
Phosphorus
16
S
32.0
Sulfur
17
Cl
35.5
Chlorine
18
Ar
39.9
Argon
19
K
39.1
Potassium
20
Ca
40.1
Calcium
21
Sc
45.0
Scandium
22
Ti
47.9
Titanium
23
V
51.0
Vanadium
24
Cr
52.0
Chromium
25
Mn
55.0
Manganese
26
Fe
56.0
Iron
27
Co
58.9
Cobalt
28
Ni
58.7
Nickel
29
Cu
63.5
Copper
30
Zn
65.4
Zinc
31
Ga
69.7
Gallium
32
Ge
72.6
Germanium
33
As
74.9
Arsenic
34
Se
79.0
Selenium
35
Br
79.9
Bromine
36
Kr
83.8
Krypton
37
Rb
85.5
Rubidium
38
Sr
87.6
Strontium
39
Y
88.9
Yttrium
40
Zr
91.2
Zirconium
41
Nb
92.9
Niobium
42
Mo
95.9
Molybdenium
43
Tc
(97)
Technetium
44
Ru
101
Ruthenium
45
Rh
103
Rhodium
46
Pd
106
Palladium
47
Ag
108
Silver
48
Cd
112
Cadmium
49
In
115
Indium
50
Sn
119
Tin
51
Sb
122
Antimony
52
Te
128
Tellurium
53
I
127
Iodine
54
Xe
131
Xenon
55
Cs
133
Cesium
56
Ba
137
Barium
57 *
La
139
Lanthanum
72
Hf
179
Hafnium
73
Ta
181
Tantalum
74
W
184
Wolfram
75
Re
186
Rhenium
76
Os
190
Osmium
77
Ir
192
Iridium
78
Pt
195
Platinum
79
Au
197
Gold
80
Hg
201
Mercury
81
Tl
204
Thallium
82
Pb
207
Lead
83
Bi
209
Bismuth
84
Po
(209)
Polonium
85
At
(210)
Astatine
86
Rn
(222)
Radon
87
Fr
(223)
Francium
88
Ra
226
Radium
89 *
Ac
(227)
Actinium
                             

 

    Lanthanide
Series
58
Ce
140
59
Pr
141
60
Nd
144
61
Pm
(145)
62
Sm
150
63
Eu
152
64
Gd
157
65
Tb
159
66
Dy
163
67
Ho
165
68
Er
167
69
Tm
169
70
Yb
173
71
Lu
175
    Actinide
Series
90
Th
232
91
Pa
231
92
U
238
93
Np
237
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
(255)
103
Lr
(260)
    Transactinide
Series
104
Rf
(257)
105
Ha
(261)