Периодическая система элементов Д. И. Менделеева
| |
IA |
IIA |
IIIB |
|
IVB |
VB |
VIB |
VIIB |
VIIIB |
IB |
IIB |
IIIA |
IVA |
VA |
VIA |
VIIA |
VIIIA |
| 1 |
1
H |
|
1
H |
2
He |
| 2 |
3
Li |
4
Be |
|
5
B |
6
C |
7
N |
8
O |
9
F |
10
Ne |
| 3 |
11
Na |
12
Mg |
|
13
Al |
14
Si |
15
P |
16
S |
17
Cl |
18
Ar |
| 4 |
19
K |
20
Ca |
21
Sc |
|
22
Ti |
23
V |
24
Cr |
25
Mn |
26
Fe |
27
Co |
28
Ni |
29
Cu |
30
Zn |
31
Ga |
32
Ge |
33
As |
34
Se |
35
Br |
36
Kr |
| 5 |
37
Rb |
38
Sr |
39
Y |
|
40
Zr |
41
Nb |
42
Mo |
43
Tc |
44
Ru |
45
Rh |
46
Pd |
47
Ag |
48
Cd |
49
In |
50
Sn |
51
Sb |
52
Te |
53
I |
54
Xe |
| 6 |
55
Cs |
56
Ba |
57
La |
58
Ce |
59
Pr |
60
Nd |
61
Pm |
62
Sm |
63
Eu |
64
Gd |
65
Tb |
66
Dy |
67
Ho |
68
Er |
69
Tm |
70
Yb |
71
Lu |
72
Hf |
73
Ta |
74
W |
75
Re |
76
Os |
77
Ir |
78
Pt |
79
Au |
80
Hg |
81
Tl |
82
Pb |
83
Bi |
84
Po |
85
At |
86
Rn |
| 7 |
87
Fr |
88
Ra |
89
Ac |
90
Th |
91
Pa |
92
U |
93
Np |
94
Pu |
95
Am |
96
Cm |
97
Bk |
98
Cf |
99
Es |
100
Fm |
101
Md |
102
No |
103
Lr |
104
Ku |
105
Ns |
106
|
107
|
108
|
109
|
110
|
111 |
112 |
113 |
114 |
115 |
116 |
117 |
118 |
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