Common Polyatomic Ion Charges

Question 1

Hg2

Answer 1

2+

Question 2

NH4

Answer 2

1+

Question 3

CN

Answer 3

1-

Question 4

CO3

Answer 4

2-

Question 5

HCO3

Answer 5

1-

Question 6

C2H3O2

Answer 6

1-

Question 7

C2O4

Answer 7

2-

Question 8

ClO

Answer 8

1-

Question 9

ClO2

Answer 9

1-

Question 10

ClO3

Answer 10

1-

Question 11

ClO4

Answer 11

1-

Question 12

CrO4

Answer 12

2-

Question 13

Cr2O7

Answer 13

2-

Question 14

MnO4

Answer 14

1-

Question 15

NO2

Answer 15

1-

Question 16

NO3

Answer 16

1-

Question 17

OH

Answer 17

1-

Question 18

O2

Answer 18

2-

Question 19

PO4

Answer 19

3-

Question 20

HPO4

Answer 20

2-

Question 21

H2PO4

Answer 21

1-

Question 22

SO3

Answer 22

2-

Question 23

SO4

Answer 23

2-

Question 24

HSO3

Answer 24

1-

Question 25

HSO4

Answer 25

1-

Question 26

S2O3

Answer 26

2-