Polyatomic ions (final copy)

Ammonium

NH₄⁺

Nitrite

NO₂−

Nitrate

NO₃-

Hydroxide

OH-

Cyanide

CN-

Permanganate

MnO₄-

Hydrogen carbonate

HCO₃-

Hypochlorite

ClO-

Chlorite

ClO₂-

Perchlorate

ClO₄-

Chlorate

ClO₃-

Bromate

BrO₃-

Iodate

IO₃-

Periodate

IO₄-

Acetate

C₂H₃O₂-

Carbonate

CO₃^2-

Sulfate

SO₄^2-

Sulfite

SO₃^2-

Peroxide

O₂^2-

Chromate

CrO₄^2-

Dichromate

Cr₂O₇^2-

Hydrogen phosphate

HPO₄^2-

Phosphate

PO₄^3-

Sulfate

SO₄^2-

Phosphite

PO₃^3-

Phosphate

PO₄^3-