Polyatomic Ions (Names First)

ClO-1

Hypochlorite

CN-1

Cyanide

HCO3-1

Bicarbonate

HSO4-1

Bisulfate or Hydrogen Sulfate

IO-1

Hypoiodite

IO2-1

Iodite

IO4-1

Periodate

C2O4-2

Oxalate

S2O3-2

Thiosulfate

Cr2O7-2

Dichromate

HC2O4-1

Bioxalate

HPO4-2

Hydrogen Phosphate

PO4-3

Phosphate

SO4-2

Sulfate

SO3-2

Sulfite

PO3-3

Phosphite

CrO4-2

Chromate

HSO3-1

Bisulfite or hydrogen sulfite

NO3-1

Nitrate

BrO3-1

Bromate

CO3-2

Carbonate

OH-1

Hydroxide

BrO-1

Hypobromite

O2-2

Peroxide

MnO4-1

Permanganate

SCN-1

Thiocyanate

HS-1

Bisulfide or Hydrogen Sulfide

IO3-1

Iodate

BrO2-1

Bromite

BrO4-1

Perbromate

ClO2-1

Chlorite

NH4+1

Ammonium

ClO3-1

Chlorate

ClO4-1

Perchlorate

C2H3O2-1

Acetate

NO2-1

Nitrite