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1
1
H
1.00794
Hydrogen
2
He
4.002602
Helium
2
3
Li
6.941
Lithium
4
Be
9.012182
Beryllium
5
B
10.811
Boron
6
C
12.0107
Carbon
7
N
14.0067
Nitrogen
8
O
15.9994
Oxygen
9
F
18.9984032
Fluorine
10
Ne
20.1791
Neon
3
11
Na
22.98976928
Sodium
12
Mg
24.3050
Magnesium
13
Al
26.9815386
Aluminum
14
Si
28.0855
Silicon
15
P
30.973762
Phosphorus
16
S
32.065
Sulfur
17
Cl
35.453
Chlorine
18
Ar
39.948
Argon
4
19
K
39.0983
Potassium
20
Ca
40.078
Calcium
21
Sc
44.955912
Scandium
22
Ti
47.867
Titanium
23
V
50.9415
Vanadium
24
Cr
51.9961
Chromium
25
Mn
54.938045
Manganese
26
Fe
55.845
Iron
27
Co
58.933195
Cobalt
28
Ni
58.6934
Nickel
29
Cu
63.546
Copper
30
Zn
65.38
Zinc
31
Ga
69.723
Gallium
32
Ge
72.63
Germanium
33
As
74.92160
Arsenic
34
Se
78.96
Selenium
35
Br
79.904
Bromine
36
Kr
83.798
Krypton
5
37
Rb
85.4678
Rubidium
38
Sr
87.62
Strontium
39
Y
88.90585
Yttrium
40
Zr
91.224
Zirconium
41
Nb
92.90638
Niobium
42
Mo
95.96
Molybdenum
43
Tc
98
Technetium
44
Ru
101.07
Ruthenium
45
Rh
102.90550
Rhodium
46
Pd
106.42
Palladium
47
Ag
107.8682
Silver
48
Cd
112.411
Cadmium
49
In
114.818
Indium
50
Sn
118.710
Tin
51
Sb
121.760
Antimony
52
Te
127.60
Tellurium
53
I
126.90447
Iodine
54
Xe
131.293
Xenon
6
55
Cs
132.9054519
Cesium
56
Ba
137.327
Barium
71
Lu
174.9668
Lutetium
72
Hf
178.49
Hafnium
73
Ta
180.94788
Tantalum
74
W
183.84
Tungsten
75
Re
186.207
Rhenium
76
Os
190.23
Osmium
77
Ir
192.217
Iridium
78
Pt
195.084
Platinum
79
Au
196.966569
Gold
80
Hg
200.59
Mercury
81
Tl
204.3833
Thallium
82
Pb
207.2
Lead
83
Bi
208.98040
Bismuth
84
Po
209
Polonium
85
At
210
Astatine
86
Rn
222
Radon
7
87
Fr
223
Francium
88
Ra
226
Radium
103
Lr
262
Lawrencium
104
Rf
265
Rutherfordium
105
Db
268
Dubnium
106
Sg
271
Seaborgium
107
Bh
272
Bohrium
108
Hs
270
Hassium
лантаноиды и актиноиды
57
La
138.90547
Lanthanum
58
Ce
140.116
Cerium
59
Pr
140.90765
Praseodymium
60
Nd
144.242
Neodymium
61
Pm
145
Promethium
62
Sm
150.36
Samarium
63
Eu
151.964
Europium
64
Gd
157.25
Gadolinium
65
Tb
158.92535
Terbium
66
Dy
162.500
Dysprosium
67
Ho
164.93032
Holmium
68
Er
167.259
Erbium
69
Tm
168.93421
Thulium
70
Yb
173.054
Ytterbium
71
Lu
174.9668
Lutetium
89
Ac
227
Actinium
90
Th
232.03806
Thorium
91
Pa
231.03586
Protactinium
92
U
238.02891
Uranium
93
Np
237
Neptunium
94
Pu
244
Plutonium
95
Am
243
Americium
96
Cm
247
Curium
97
Bk
247
Berkelium
98
Cf
251
Californium
99
Es
252
Einsteinium
100
Fm
257
Fermium
101
Md
258
Mendelevium
102
No
259
Nobelium
103
Lr
262
Lawrencium

новые элементы
109
Mt
276
Meitnerium
110
Ds
281
Darmstadtium
111
Rg
280
Roentgenium
112
Cn
285
Copernicium
113
Uut
284
Ununtrium
114
Fl
289
Flerovium
115
Uup
288
Ununpentium
116
Lv
293
Livermorium
117
Uus
294
Ununseptium
118
Uuo
294
Ununoctium

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