WebElements

WebElements

Welcome to version 1.2.2 of WebElements - the periodic table on the WWW. If this file downloaded slowly for you, try using a closer WebElements site, a list of which is here.

Please do use WebElements, but do not assume the data is correct and so use the data contained here at your own risk. Please read the further information. This version of WebElements is not designed to be comprehensive in any way. If you need access to a much more further information, many more literature references, definitions, graphical displays of periodic properties (see below for examples of these), then you should visit WebElements 2. The URL for WebElements 2 is:

http://www.shef.ac.uk/~chem/web-elements/

To start, select an element from the periodic table below. In the following table, each box shows the atomic number and the symbol for an element. Elements 113-118 currently are unknown, but are included in the table to show their expected positions.

Group 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
  1A 2A 3B 4B 5B 6B 7B 8B 1B 2B 3A 4A 5A 6A 7A 8A
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
Uun
111
Uuu
112
Uub
113
Uut
114
Uuq
115
Uup
116
Uuh
117
Uus
118
Uuo
 
lanthanides * 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
actinides ** 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

Further Information

Mark Winter

Copyright 1997 Mark Winter
Department of Chemistry at the University of Sheffield, Sheffield S3 7HF, England.

The current version of this document is at http://www.shef.ac.uk/~chem/web-elements-I/