Periodic Table of the Elements

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Color Codes Alkali Metals
Metals
Metaloids
Nonmetals
Halogens
Inert Gases
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

1

1
H
1.0
2
He
4

2

3
Li
6.9
4
Be
9.0
5
B
10.8
6
C
12
7
N
14
8
O
16
9
F
19
10
Ne
20.2

3

11
Na
23
12
Mg
24.3
13
Al
27
14
Si
28.1
15
P
31
16
S
32.1
17
Cl
35.5
18
Ar
39.9

4

19
K
39.1
20
Ca
40.1
21
Sc
45
22
Ti
47.9
23
V
50.9
24
Cr
52
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
35
Br
79.9
36
Kr
83.8

5

37
Rb
85.5
38
Sr
87.6
39
Y
88.9
40
Zr
91.2
41
Nb
92.9
42
Mo
95.9
43
Tc
(98)
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

6

55
Cs
132.9
56
Ba
137
57
La
138.9
72
Hf
178.5
73
Ta
180.9
74
W
183.9
75
Re
186.2
76
Os
190.2
77
Ir
192.2
78
Pt
195.1
79
Au
197
80
Hg
200.6
81
Tl
204.4
82
Pb
207.2
83
Bi
209
84
Po
(210)
85
At
(210)
86
Rn
(222)

7

87
Fr
(223)
88
Ra
226
89
Ac
227
104
Unq
(259)
105
Unp
(260)
106
Unh
(263)
107
Uns
(262)
108
Uno
(265)
109
Une
(266)
Lanthanoids
58
Ce
140.1
59
Pr
140.9
60
Nd
144.2
61
Pm
(145)
62
Sm
150.4
63
Eu
152
64
Gd
157.2
65
Tb
157.9
66
Dy
162.5
67
Ho
164.9
68
Er
167.3
69
Tm
168.9
70
Yb
173.0
71
Lu
175
Actinoids
90
Th
232.0
91
Pa
231.0
92
U
238.0
93
Np
237.0
94
Pu
(244)
95
Am
(243)
96
Cm
(247)
97
Bk
(247)
98
Cf
(247)
99
Es
(252)
100
Fm
(257)
101
Md
(258)
102
No
(259)
103
Lr
(260)

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This HTML presentation of the Periodic Table of the Elements is
Copyright © 1997 by John Herring
Please send comments to the author at jhherring@yahoo.com.