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WebElementsTM Periodic table (professional edition)

See also: WebElements Scholar Edition - for chemistry and other students at universities and schools.

Select an element from the periodic table.
Group 1 2   3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Period
1 1
H
2
He
2 3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
3 11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4 19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5 37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6 55
Cs
56
Ba
* 71
Lu
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7 87
Fr
88
Ra
** 103
Lr
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Uub
113
Uut
114
Uuq
115
Uup
116
Uuh
117
Uus
118
Uuo
 
*Lanthanoids * 57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
**Actinoids ** 89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No

Notes

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  • the first ever periodic table on the WWW
  • Author: Mark Winter [Department of Chemistry, University of Sheffield, England]
  • WebElements aims to be a high quality source of chemistry information on the WWW relating to the periodic table. Coverage is such that professional scientists and students at school interested in chemistry and other sciences will all find something useful.
  • The WebElements Scholar edition is designed for students at universities and schools.
  • Hot news: elements 113 and 115 are claimed. see this page for more details.
  • Note that element 117 (ununseptium) and element 118 (ununoctium) are not known, but are included in the table to show their expected positions. A team of scientists that announced in 1999 the observation of what appeared to be Element 118 has retracted its original paper after several confirmation experiments failed to reproduce the results. Please see this page for more details. More recently, further tentative suggestions about element 118 are appearing.

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WebElements is the periodic table on the WWW

WebElementsTM, the periodic table on the WWW, URL: http://www.webelements.com/
Copyright 1993-2006 Mark Winter [The University of Sheffield and WebElements Ltd, UK]. All rights reserved.
Document served: Friday 23rd December, 2005