Alkali metal
Alkaline earth
metal
T
ransition
metal
Post-transition
metal
Metalloid
Non-metal
Noble gas
Halogen
Lanthanide
Аctinide
1,008
4,003
6,941
9,012
24,305
22,990
39,098
40,078
84,468
87,62
132,905
137,328
223,020
226,025
44,956
88,906
47,88
91,224
178,49
50,942
51,996
92,906
95,95
180,948
183,84
[267]
[270]
[269]
[270]
[270]
[278]
[281]
[281]
[285]
[284]
[289]
[288]
[293]
[208,982]
[294]
[294]
186,207
98,907
54,938
55,845
101,07
190,23
192,217
102,906
58,933
58,693
106,42
195,085
196,967
107,868
63,546
65,38
1
12,414
200,592
204,383
1
14,818
69,723
26,982
10,8
1
1
12,0
1
1
28,086
72,631
1
18,7
1
1
207,2
208,980
121,760
74,992
30,974
14,007
15,999
18,998
35,453
32,066
78,971
79,904
126,904
127,6
209,987
222,018
131,249
84,798
39,948
20,180
174,967
[262]
259,101
173,055
258,1
169,934
167,259
257,095
[254]
164,930
126,904
128,905
247,070
247,070
157,25
151,964
150,36
244,064
237,048
144,913
144,243
238,029
231,036
140,908
140,
1
16
232,038
227,028
138,905
243,061
251,080
1
2
3
4
5
6
7
8
9
10
1
1
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
97
98
99
100
102
104
105
106
107
108
109
1
10
11
1
1
14
1
15
1
16
1
17
57-71
89-103
96
101
103
1
12
1
13
1
18
Li
Na
K
Rb
Cs
Fr
Be
Mg
Ca
Sr
Ba
Ra
V
Sc
T
i
Y
Zr
Hf
Rf
Db
T
a
Nb
Cr
Mo
W
Sg
Bh
Re
T
c
Mn
Fe
Ru
Os
Hs
Co
Rh
Ir
Mt
Ds
Pt
Pd
Ni
Cu
Ag
Au
Rg
Cn
Hg
Cd
Zn
B
Al
Ga
In
Tl
Nh
Fl
Pb
Sn
Ge
Si
C
N
P
As
Sb
Bi
Mc
O
S
Se
T
e
Po
Lv
T
s
Og
At
Rn
I
Xe
Br
Kr
Cl
Ar
F
Ne
He
Ac
Nd
Pr
Pa
U
La
Ce
Th
Np
Pm
Sm
Pu
Am
Eu
Gd
Cm
Bk
Tb
Dy
Cf
Es
Ho
Er
Fm
Tm
Md
Yb
Lu
No
Lr
H
Hydrogen
Lithium
Potassium
Calcium
Rubidium
Strontium
Cesium
Barium
Francium
Radium
Scandium
Yttrium
T
itanium
V
anadium
Zirconium
Niobium
Hafnium
Beryllium
Sodium
Magnesium
Тantalum
Rutherfordium
Dubnium
Seabo
r
gium
T
ungsten
М
оlybdenum
Chromium
Manganese
Iron
Т
еchnetium
Ruthenium
Rhenium
Osmium
Hassium
Bohrium
Meitnerium
Darmstadtium
Platinum
Iridium
Rhodium
Palladium
Silver
Cobalt
Nickel
Copper
Zinc
Cadmium
Gold
Mercury
Roentgenium
Copernicium
Nihonium
T
ellurium
Indium
Gallium
Aluminium
Boron
Carbon
Silicon
Germanium
T
in
Antinomy
Bismuth
Flerovium
Moscovium
Polonium
Livermorium
Thallium
Arsenic
Selenium
Phosphorus
Sulfur
Nitrogen
Oxygen
Fluorine
Neon
Helium
Chlorine
A
r
gon
Bromine
Krypton
Iodine
Xenon
Astatine
Radon
T
ennessine
Oganesson
Lanthanum
Actinium
Cerium
Praseodymium
Thorium
Protactinium
Uranium
Neodymium
Neptunium
Promethium
Samarium
Plutonium
Americium
Europium
Gadolinium
Berkelium
Californium
Dysprosium
Т
еrbium
Holmium
Einsteinium
Erbium
Fermium
Mendelevium
Lutetium
Ytterbium
Nobelium
Lawrencium
Lead
Curium
Thulium
Number
Symbol
Name
Atomic
mass
Radioactive
1
2
3
4
5
6
7
Periods
I
II
III
IV
V
VI
VII
VIII
IX
X
XI
XII
XIII
XIV
XV
XVI
XVII
XVII
Interactive periodic table of chemical elements
Press on the elements
to find out more
Groups
Actinides
Lanthanides
Lanthanides
Actinides