Abe Element Test 1, Jan 25

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Element

Symbol

Atomic Number

Approximate Atomic Weight

Usual Valence

Aluminum

Al

13

27

+3

Antimony

Sb

51

122

+3, +5

Argon

Ar

18

40

0

Arsenic

As

33

75

+-3, +5

Barium

Ba

56

137

+2

Bismuth

Bi

83

209

+3, +5

Boron

B

5

11

+3

Bromine

Br

35

80

-1

Cadmium

Cd

48

112

+2

Calcium

Ca

20

40

+2

Carbon

C

6

12

+-4

Chlorine

Cl

17

35.5

-1

Chromium

Cr

24

52

+3, +6

Cobalt

Co

27

59

+2

Copper

Cu

29

63.5

+1, +2

Flourine

F

9

19

-1

Gold

Au

79

197

+1, +3

Helium

He

2

4

0

Hydrogen

H

1

1

+1

Iodine

I

53

127

-1

Iron

Fe

26

56

+2, +3

Lead

Pb

82

207

+2, +4

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