IA IIA IIIA IVA VA VIA VIIA 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 1
Vodík
H
1.01
2
Hélium
He
4.00
2 3
Litium
Li
6.94
4
Berýllium
Be
9.01
5
Bór
B
10.81
6
Uhlík
C
12.01
7
Dusík
N
14.01
8
Kyslík
O
16.00
9
Fluór
F
19.00
10
Neón
Ne
20.18
3 11
Sodík
Na
23.00
12
Horčík
Mg
24.31
13
Hlinník
Al
26.98
14
Kremík
Si
28.09
15
Fosfor
P
30.97
16
Síra
S
32.07
17
Chlór
Cl
35.45
18
Argón
Ar
39.95
4 19
Draslík
K
39.10
20
Vápník
Ca
40.08
21
Skandium
Sc
44.96
22
Titán
Ti
47.89
23
Vanád
V
50.94
24
Chróm
Cr
52.00
25
Mangán
Mn
54.94
26
Železo
Fe
55.85
27
Kobalt
Co
58.93
28
Nikel
Ni
58.69
29
Meď
Cu
63.55
30
Zinok
Zn
65.39
31
Gálium
Ga
69.72
32
Germánium
Ge
72.61
33
Arzén
As
74.92
34
Selén
Se
78.96
35
Bróm
Br
79.90
36
Kryptón
Kr
83.80
5 37
Rubidium
Rb
85.48
38
Stroncium
Sr
87.62
39
Ytrium
Y
88.91
40
Zirkón
Zr
91.22
41
Niób
Nb
92.91
42
Molybdén
Mo
95.94
43
Technécium
Tc
[99]
44
Ruténium
Ru
101.07
45
Ródium
Rh
102.91
46
Paládium
Pd
106.42
47
Striebro
Ag
107.87
48
Kadmium
Cd
112.41
49
Indium
In
114.82
50
Cín
Sn
118.71
51
Antimón
Sb
121.76
52
Telúr
Te
127.60
53
Jód
I
126.90
54
Xenón
Xe
131.29
6 55
Cézium
Cs
132.91
56
Bárium
Ba
137.33
57-71
Lantanoidy
*
72
Hafnium
Hf
178.49
73
Tantal
Ta
180.95
74
Wolfram
W
183.84
75
Rhenium
Re
186.21
76
Osmium
Os
190.23
77
Iridium
Ir
192.22
78
Platina
Pt
195.08
79
Zlato
Au
196.97
80
Ortut
Hg
200.59
81
Thallium
Tl
204.38
82
Olovo
Pb
207.21
83
Bismut
Bi
208.98
84
Polonium
Po
[210]
85
Astat
At
[210]
86
Radon
Rn
[222]
7 87
Francium
Fr
[223]
88
Radium
Ra
[226]
89-103
Aktinoidy
**
104
Ruterfordium
Rf
[261]
105
Dubnium
Db
[262]
106
Seaborgium
Sg
[263]
107
Bórium
Bh
[264]
108
Hasium
Hs
[269]
109
Meitnerium
Mt
[268]
110
Darmstadtium
Ds
[269]
111
Röntgenium
Rg
[272]

*
57
Lantán
La
138.91
58
Cér
Ce
140.12
59
Prazeodým
Pr
140.91
60
Neodym
Nd
144.24
61
Promethium
Pm
[145]
62
Samarium
Sm
150.36
63
Europium
Eu
151.97
64
Gadolinium
Gd
157.25
65
Terbium
Tb
158.93
66
Dysprosium
Dy
162.50
67
Holmium
Ho
164.93
68
Erbium
Er
167.26
69
Thulium
Tm
168.93
70
Ytterbium
Yb
173.04
71
Lutecium
Lu
174.97

**
89
Aktinium
Ac
[227]
90
Thorium
Th
232.04
91
Protaktinium
Pa
231.04
92
Uran
U
238.03
93
Neptunium
Np
[237]
94
Plutonium
Pu
[239]
95
Americium
Am
[243]
96
Curium
Cm
[247]
97
Berkelium
Bk
[247]
98
Kalifornium
Cf
[252]
99
Einsteinium
Es
[252]
100
Fermium
Fm
[257]
101
Mendelevium
Md
[256]
102
Nobelium
No
[259]
103
Lawrencium
Lr
[260]