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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

  • 60 million page views in 2003
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  • WebElements is 10 years old (launched September 1993)!
  • Bookmark this address: http://www.webelements.com/
  • the first ever periodic table on the WWW
  • Author: Mark Winter [Department of Chemistry, University of Sheffield, England]
  • Royal Society of Chemistry 1998 HE Teaching Award winner
  • 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.
  • Element 110 now has a name: Darmstadtium with symbol Ds
  • Element 111 now has a proposed name: Roentgenium with symbol Rg

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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 1993-2004 Mark Winter [The University of Sheffield and WebElements Ltd, UK]. All rights reserved.
Document served: Thursday 30th September, 2004