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Periodic Table
Interactive periodic table of elements
Alkali Metal
Alkaline Earth
Transition Metal
Post-Transition
Metalloid
Nonmetal
Halogen
Noble Gas
Lanthanide
Actinide
1
H
1.0
2
He
4.0
3
Li
6.9
4
Be
9.0
5
B
10.8
6
C
12.0
7
N
14.0
8
O
16.0
9
F
19.0
10
Ne
20.2
11
Na
23.0
12
Mg
24.3
13
Al
27.0
14
Si
28.1
15
P
31.0
16
S
32.1
17
Cl
35.5
18
Ar
40.0
19
K
39.1
20
Ca
40.1
21
Sc
45.0
22
Ti
47.9
23
V
50.9
24
Cr
52.0
25
Mn
54.9
26
Fe
55.9
27
Co
58.9
28
Ni
58.7
29
Cu
63.5
30
Zn
65.4
31
Ga
69.7
32
Ge
72.6
33
As
74.9
34
Se
79.0
35
Br
79.9
36
Kr
83.8
37
Rb
85.5
38
Sr
87.6
39
Y
88.9
40
Zr
91.2
41
Nb
92.9
42
Mo
96.0
43
Tc
98.0
44
Ru
101.1
45
Rh
102.9
46
Pd
106.4
47
Ag
107.9
48
Cd
112.4
49
In
114.8
50
Sn
118.7
51
Sb
121.8
52
Te
127.6
53
I
126.9
54
Xe
131.3
55
Cs
132.9
56
Ba
137.3
57
La
138.9
58
Ce
140.1
59
Pr
140.9
60
Nd
144.2
61
Pm
145.0
62
Sm
150.4
63
Eu
152.0
64
Gd
157.3
65
Tb
158.9
66
Dy
162.5
67
Ho
164.9
68
Er
167.3
69
Tm
168.9
70
Yb
173.0
71
Lu
175.0
72
Hf
178.5
73
Ta
180.9
74
W
183.8
75
Re
186.2
76
Os
190.2
77
Ir
192.2
78
Pt
195.1
79
Au
197.0
80
Hg
200.6
81
Tl
204.4
82
Pb
207.2
83
Bi
209.0
84
Po
209.0
85
At
210.0
86
Rn
222.0
87
Fr
223.0
88
Ra
226.0
89
Ac
227.0
90
Th
232.0
91
Pa
231.0
92
U
238.0
93
Np
237.0
94
Pu
244.0
95
Am
243.0
96
Cm
247.0
97
Bk
247.0
98
Cf
251.0
99
Es
252.0
100
Fm
257.0
101
Md
258.0
102
No
259.0
103
Lr
266.0
104
Rf
267.0
105
Db
268.0
106
Sg
269.0
107
Bh
270.0
108
Hs
277.0
109
Mt
278.0
110
Ds
281.0
111
Rg
282.0
112
Cn
285.0
113
Nh
286.0
114
Fl
289.0
115
Mc
290.0
116
Lv
293.0
117
Ts
294.0
118
Og
294.0
57-71
89-103
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