1 2.
H
1,
3 0.
Li
6,
11 0.
Na
23,
19 0.
K
39,
37 0.
Rb
85,
55 0.
Cs
132,
87 0.
Fr
(223)
4 1.
Be
9,
12 1.
Mg
24,
20 1.
Ca
40,
38 0.
Sr
87,
56 0.
Ba
137,
88 0.
Ra
226,
21 1.
Sc
45,
39 1.
Y
88,
57-
La-Lu
Lanthanides
89-
Ac-Lr
Actinides
22 1.
Ti
47,
40 1.
Zr
91,
72 1.
Hf
178,
104
Rf
(261)
23 1.
V
50,
41 1.
Nb
92,
73 1.
Ta
180,
105
Db
(262)
24 1.
Cr
52,
42 2.
Mo
95,
74 2.
W
183,
106
Sg
(263)
25 1.
Mn
54,
43 1.
Tc
(98)
75 1.
Re
186,
107
Bh
(262)
26 1.
Fe
55,
44 2.
Ru
101,
76 2.
Os
190,
108
Hs
(265)
27 1.
Co
58,
45 2.
Rh
102,
77 2.
Ir
192,
109
Mt
(266)
28 1.
Ni
58,
46 2.
Pd
106,
78 2.
Pt
195,
110
Ds
(269)
29 1.
Cu
63,
47 1.
Ag
107,
79 2.
Au
197,
111
Rg
(272)
30 1.
Zn
65,
48 1.
Cd
112,
80 2.
Hg
200,
112
Cn
(277)
31 1.
Ga
69,
13 1.
Al
27,
5 2.
B
10,
49 1.
In
114,
81 1.
Tl
204,
113
Uut
(284)
6 2.
C
12,
14 1.
Si
28,
32 2.
Ge
72,
50 1.
Sn
118,
82 2.
Pb
207,
114
Uuq
(289)
7 3.
N
14,
15 2.
P
31,
33 2.
As
74,
51 2.
Sb
121,
83 2.
Bi
209,
115
Uup
(288)
8 3.
O
16,
16 2.
S
32,
34 2.
Se
79,
52 2.
Te
127,
84 2.
Po
(209)
116
Uuh
(293)
9 3.
F
19,
17 3.
Cl
35,
35 2.
Br
79,
53 2.
I
126,
85 2.
At
(210)
117
Uus
(282)
10
Ne
20,
2
He
4,
18
Ar
39,
36
Kr
83,
54
Xe
131,
86
Rn
(222)
118
Uuo
(282)
1 IA
2 IIA
3 IIIB 4 IVB 5 VB 6 VIB 7 VIIB 8 VII 9 VII 10 VII 11 IB 12 IIB
13 IIIA 14 IVA 15 VA 16 VIA 17 VIIA
18 0
57 1.
La
138,
58 1.
Ce
140,
59 1.
Pr
140,
60 1.
Nd
144,
61
Pm
(145)
62 1.
Sm
150,
63
Eu
152,
64 1.
Gd
157,
65
Tb
158,
66 1.
Dy
162,
67 1.
Ho
164,
68 1.
Er
167,
69 1.
Tm
168,
70
Yb
173,
71 1.
Lu
175,
89 1.
Ac
227,
90 1.
Th
232,
91 1.
Pa
231,
92 1.
U
238,
93 1.
Np
237,
94 1.
Pu
(244)
95 1.
Am
(243)
96 1.
Cm
(247)
97 1.
Bk
(247)
98 1.
Cf
(251)
99 1.
Es
(252)
100 1.
Fm
(257)
101 1.
Md
(258)
102 1.
No
(258)
103
Lr
(260)
Transition Metal
Metal
Metalloid
Non-metal
Noble Gas
Lanthanide
Actinide
Periodic Table of the Elements
No EN
Element
AMU