Periodic Table of Ionic Charges and Oxidation Numbers

Each element is shown with its possible oxidation states.

Possible ionic charges are bold.  Most common oxidation state is underlined.

                                                                                                                                                                                                                                                                            

                                                                                                                                                                                                                                                                               

 

IA

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VIII

18

1

H

+1

-1

 

IIA

2

 

 

 

 

 

 

IIIA

13

 

IVA

14

 

VA

15

 

VIA

16

 

VIIA

17

2

He

0

3

Li

+1

4

Be

+2

 

 

 

 

 

 

 

 

 

 

5

B

+3

6

C

+2,4

-2,4

7

N

-3

+2,3,4,5

8

O

-2

-1,+1

9

F

-1

10

Ne

0

11

Na

+1

12

Mg

+2

 

 

3

 

4

 

5

 

6

 

7

 

8

 

9

 

10

 

11

 

12

13

Al

+3

14

Si

+2,4

15

P

-3

+3,4,5

16

S

-2

+2,4,6

17

Cl

-1

+1,3,5,7

18

Ar

0

19

K

+1

20

Ca

+2

21

Sc

+3

22

Ti

+3,4

23

V

+2,3,4,5

24

Cr

+2,3,6

25

Mn

+2,3,4,6,7

26

Fe

+2,3

27

Co

+2,3

28

Ni

+2,3

29

Cu

+1,2

30

Zn

+2

31

Ga

+3

32

Ge

+4

33

As

-3

+3,5

34

Se

-2

+2,4,6

35

Br

-1

+1,5,7

36

Kr

0,2

37

Rb

+1

38

Sr

+2

39

Y

+3

40

Zr

+4

41

Nb

+3,5

42

Mo

+2,3,4,5,6

43

Tc

+7

44

Ru

+2,3,4,6,8

45

Rh

+2,3,4

46

Pd

+2,4

47

Ag

+1

48

Cd

+2

49

In

+3

50

Sn

+2,4

51

Sb

-3

+3,5

52

Te

-2

+2,4,6

53

I

-1

+1,5,7

54

Xe

0,2,4,6

55

Cs

+1

56

Ba

+2

57

La

+3

72

Hf

+4

73

Ta

+5

74

W

+2,3,4,5,6

75

Re

+2,4,6,7

-1

76

Os

+2,3,4,6,8

77

Ir

+2,3,4,6

78

Pt

+2,4

79

Au

+1,3

80

Hg

+1,2

81

Tl

1, +3

82

Pb

+2,4

83

Bi

+3,5

84

Po

+2,4,6

85

At

-1

+1,3,5,7

86

Rn

0,2

87

Fr

+1

88

Ra

+2

89

Ac

+3

104

Rf

105

Db

106

Sg

107

Bh

108

Hs

109

Mt

110

Uun

111

Uuu

112

Uub

 

114

Uuq

 

116

Uuh

 

118

Uuo

 

58

Ce

+3,4

59

Pr

+3,4

60

Nd

+3

61

Pm

+3

62

Sm

+2,3

63

Eu

+2,3

64

Gd

+3

65

Tb

+3,4

66

Dy

+3

67

Ho

+3

68

Er

+3

69

Tm

+2,3

70

Yb

+2,3

71

Lu

+3

90

Th

+4

91

Pa

+4,5

92

U

+3,4,5,6

93

Np

+3,4,5,6

94

Pu

+3,4,5,6

95

Am

+3,4,5,6

96

Cm

+3

97

Bk

+3,4

98

Cf

99

Es

+3

100

Fm

+3

101

Md

+3

102

No

+2,3

103

Lr

+3