The periodic table of the elements
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Los Alamos National Laboratory s Chemistry Division Presents
Periodic Table of the Elements
A Resource for Elementary, Middle School, and High School Students
Click an element for more information:
Period
Group**
1
IA
1A
18
VIIIA
8A
1
1...
[More]
Los Alamos National Laboratory s Chemistry Division Presents
Periodic Table of the Elements
A Resource for Elementary, Middle School, and High School Students
Click an element for more information:
Period
Group**
1
IA
1A
18
VIIIA
8A
1
1
H
1.
008
2
IIA
2A
13
IIIA
3A
14
IVA
4A
15
VA
5A
16
VIA
6A
17
VIIA
7A
2
He
4.
003
2
3
Li
6.
941
4
Be
9.
012
5
B
10.
81
6
C
12.
01
7
N
14.
01
8
O
16.
00
9
F
19.
00
10
Ne
20.
18
3
11
Na
22.
99
12
Mg
24.
31
3
IIIB
3B
4
IVB
4B
5
VB
5B
6
VIB
6B
7
VIIB
7B
8 9 10 11
IB
1B
12
IIB
2B
13
Al
26.
98
14
Si
28.
09
15
P
30.
97
16
S
32.
07
17
Cl
35.
45
18
Ar
39.
95
------- VIII
------------- 8 ------4
19
K
39.
10
20
Ca
40.
08
21
Sc
44.
96
22
Ti
47.
88
23
V
50.
94
24
Cr
52.
00
25
Mn
54.
94
26
Fe
55.
85
27
Co
58.
47
28
Ni
58.
69
29
Cu
63.
55
30
Zn
65.
39
31
Ga
69.
72
32
Ge
72.
59
33
As
74.
92
34
Se
78.
96
35
Br
79.
90
36
Kr
83.
80
5
37
Rb
85.
47
38
Sr
87.
62
39
Y
88.
91
40
Zr
91.
22
41
Nb
92.
91
42
Mo
95.
94
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.
3
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
190.
2
78
Pt
195.
1
79
Au
197.
0
80
Hg
200.
5
81
Tl
204.
4
82
Pb
207.
2
83
Bi
209.
0
84
Po
(210)
85
At
(210)
86
Rn
(222)
7
87
Fr
(223)
88
Ra
(226)
89
Ac~
(227)
104
Rf
(257)
105
Db
(260)
106
Sg
(263)
107
Bh
(262)
108
Hs
(265)
109
Mt
(266)
110
--()
111
--()
112
--()
114
--()
116
--()
118
--()
A Periodic Table of the Elements at Los Alamos National Laboratory
http://pearl1.
lanl.
gov/periodic/default.
htm (1 of 3) [8/29/2001 6:07:19 PM]
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