1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
1
H
Hydrogen
1
1
2
He
Helium
4
2
3
Li
Lithium
7
2
1
4
Be
Beryllium
9
2
2
5
B
Boron
11
2
3
6
C
Carbon
12
2
4
7
N
Nitrogen
14
2
5
8
O
Oxygen
16
2
6
9
F
Fluorine
19
2
7
10
Ne
Neon
20
2
8
11
Na
Sodium
23
2
8
1
12
Mg
Magnesium
24
2
8
2
13
Al
Aluminium
27
2
8
3
14
Si
Silicon
28
2
8
4
15
P
Phosphorus
31
2
8
5
16
S
Sulfur
32
2
8
6
17
Cl
Chlorine
35
2
8
7
18
Ar
Argon
40
2
8
8
19
K
Potassium
39
2
8
8
1
20
Ca
Calcium
40
2
8
8
2
21
Sc
Scandium
45
2
8
9
2
22
Ti
Titanium
48
2
8
10
2
23
V
Vanadium
51
2
8
11
2
24
Cr
Chromium
52
2
8
13
1
25
Mn
Manganese
55
2
8
13
2
26
Fe
Iron
56
2
8
14
2
27
Co
Cobalt
59
2
8
15
2
28
Ni
Nickel
59
2
8
16
2
29
Cu
Copper
64
2
8
18
1
30
Zn
Zinc
65
2
8
18
2
31
Ga
Gallium
70
2
8
18
3
32
Ge
Germanium
73
2
8
18
4
33
As
Arsenic
75
2
8
18
5
34
Se
Selenium
79
2
8
18
6
35
Br
Bromine
80
2
8
18
7
36
Kr
Krypton
84
2
8
18
8
37
Rb
Rubidium
85
2
8
18
8
1
38
Sr
Strontium
88
2
8
18
8
2
39
Y
Yttrium
89
2
8
18
9
2
40
Zr
Zirconium
91
2
8
18
10
2
41
Nb
Niobium
93
2
8
18
12
1
42
Mo
Molybdenum
96
2
8
18
13
1
43
Tc
Technetium
(98)
2
8
18
13
2
44
Ru
Ruthenium
101
2
8
18
15
1
45
Rh
Rhodium
103
2
8
18
16
1
46
Pd
Palladium
106
2
8
18
18
47
Ag
Sliver
108
2
8
18
18
1
48
Cd
Cadmium
112
2
8
18
18
2
49
In
Indium
115
2
8
18
18
3
50
Sn
Tin
204
2
8
18
18
4
51
Sb
Antimony
122
2
8
18
18
5
52
Te
Tellurium
128
2
8
18
18
6
53
I
Iodine
127
2
8
18
18
7
54
Xe
Xenon
131
2
8
18
18
8
55
Cs
Caesium
133
2
8
18
18
8
1
56
Ba
Barium
137
2
8
18
18
8
2
57
La
Lanthanum
139
2
8
18
18
9
2
58
Ce
Cerium
140
2
8
18
19
9
2
59
Pr
Praseodymium
141
2
8
18
21
8
2
60
Nd
Neodymium
144
2
8
18
22
8
2
61
Pm
Promethium
144
2
8
18
23
8
2
62
Sm
Samarium
150
2
8
18
24
8
2
63
Eu
Europium
152
2
8
18
25
8
2
64
Gd
Gadolinium
157
2
8
18
25
9
2
65
Tb
Terbium
159
2
8
18
27
8
2
66
Dy
Dysprosium
162
2
8
18
28
8
2
67
Ho
Holmium
165
2
8
18
29
8
2
68
Er
Erbium
167
2
8
18
30
8
2
69
Tm
Thulium
169
2
8
18
31
8
2
70
Yb
Ytterbium
173
2
8
18
32
8
2
71
Lu
lutetium
175
2
8
18
32
9
2
72
Hf
Hafnium
178
2
8
18
32
10
2
73
Ta
Tantalum
181
2
8
18
32
11
2
74
W
Tungsten
184
2
8
18
32
12
2
75
Re
Rhenium
186
2
8
18
32
13
2
76
Os
Osmium
190
2
8
18
32
14
2
77
Ir
Iridium
192
2
8
18
32
15
2
78
Pt
Platinum
195
2
8
18
32
17
1
79
Au
Gold
197
2
8
18
32
18
1
80
Hg
Mercury
201
2
8
18
32
18
2
81
Tl
Thallium
204
2
8
18
32
18
3
82
Pb
Lead
207
2
8
18
32
18
4
83
Bi
Bismuth
209
2
8
18
32
18
5
84
Po
Polonium
(209)
2
8
18
32
18
6
85
At
Astatine
(210)
2
8
18
32
18
7
86
Rn
Radon
(222)
2
8
18
32
18
8
87
Fr
Francium
(223)
2
8
18
32
18
8
1
88
Ra
Radium
(226)
2
8
18
32
18
8
2
89
Ac
Actinium
(227)
2
8
18
32
18
9
2
90
Th
Thorium
232
2
8
18
32
18
10
2
91
Pa
Protactinium
231
2
8
18
32
20
9
2
92
U
Uranium
238
2
8
18
32
21
9
2
93
Np
Neptunium
(237)
2
8
18
32
22
9
2
94
Pu
Plutonium
(244)
2
8
18
32
24
8
2
95
Am
Americium
(243)
2
8
18
32
25
8
2
96
Cm
Curium
(247)
2
8
18
32
25
9
2
97
Bk
Berkelium
(247)
2
8
18
32
27
8
2
98
Cf
Californium
(251)
2
8
18
32
28
8
2
99
Es
Einsteinium
(252)
2
8
18
32
29
8
2
100
Fm
Fermium
(257)
2
8
18
32
30
8
2
101
Md
Mendelevium
(258)
2
8
18
32
31
8
2
102
No
Nobelium
(259)
2
8
18
32
32
8
2
103
Lr
Lawrencium
(266)
2
8
18
32
32
8
3
104
Rf
Rutherfordium
(267)
2
8
18
32
32
10
2
105
Db
gold
Dubnium
(268)
2
8
18
32
32
11
2
106
Sg
Seaborgium
(269)
2
8
18
32
32
12
2
107
Bh
Bohrium
(270)
2
8
18
32
32
13
2
108
Hs
Hassi
(277)
2
8
18
32
32
14
2
109
Mt
Meitnerium
(278)
2
8
18
32
32
15
2
110
Ds
Darmstadtium
(281)
2
8
18
32
32
17
1
111
Rg
Roentgenium
(282)
2
8
18
32
32
17
2
112
Cn
Copernicium
(282)
2
8
18
32
32
18
2
113
Nh
Nihonium
(286)
2
8
18
32
32
18
3
114
Fl
Flerovium
(289)
2
8
18
32
32
18
4
115
Mc
Moscovium
(290)
2
8
18
32
32
18
5
116
Lv
Livermorium
(293)
2
8
18
32
32
18
6
117
Ts
Tennessine
(294)
2
8
18
32
32
18
7
118
Og
Oganesson
(294)
2
8
18
32
32
18
8
57-71
89-103
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Họ Actinoids
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