AP CHEM: Charges of Common Polyatomic ions and Naming

Ammonium (NH4)

Ammonium (NH4)

+1

Mercury (Hg)

+2

Acetate (CH3COO) (C2H3O2)

-1

Chlorate (CIO3)

-1

Chlorite (CIO2)

-1

Cyanide (CN)

-1

Hydroxide (OH)

-1

Hypochlorite (CIO)

-1

Iodate (IO3)

-1

Nitrate (NO3)

-1

Nitrite (NO2)

-1

Perchlorate (CIO4)

-1

Permanganate (MnO4)

-1

Carbonate (CO3)

-2

Chromate (CrO4)

-2

Dichromate (Cr2O7)

-2

Oxalate (C2O4)

-2

Peroxide (O2)

-2

Silicate (SiO3)

-2

Sulfate (SO4)

-2

Sulfite (SO3)

-2

Tartrate (C4H4O6)

-2

Tetraborate (B4O7)

-2

Thiosulfate (S2O3)

-2

Phosphate (PO4)

-3

NH4

Ammonium

NH3

Ammonia

Hg

Mercury

Acetate

CH3COO or C2H3O2

Chlorate

ClO3

Chlorite

ClO2

Cyanide

CN

Hydroxide

OH

Hypochlorite

ClO

Iodate

IO3

Nitrate

NO3

Nitrite

NO2

Perchlorate

ClO4

Permanganate

MnO4

Carbonate

CO3

Chromate

CrO4

Dichromate

Cr2O7

Oxalate

C2O4

Peroxide

O2

Silicate

SiO3

Sulfate

SO4

Sulfite

SO3

Tartrate

C4H4O6

Tetraborate

B4O7

Thiosulfate

S2O3

Phosphate

PO4