Wang Chem Names of Common Polyatomic Ions

NH₄⁺

NH₄⁺

ammonium

NO₂^-

nitrite

NO₃^-

nitrate

SO₃^2-

sulfite

SO₄^2-

sulfate

HSO₄^-

hydrogen sulfate (bisulfate)

OH^-

hydroxide

CN^-

cyanide

PO₄^3-

phosphate

HPO₄^2-

hydrogen phosphate

H₂PO₄^-

dihydrogen phosphate

CO₃^2-

carbonate

HCO₃^-

hydrogen carbonate (bicarbonate)

ClO^-

hypochlorite

ClO₂^-

chlorite

ClO₃^-

chlorate

ClO₄^-

perchlorate

C₂H₃O₂^- (CH₃COO)

acetate

MnO₄^-

permanganate

Cr₂O₇^2-

dichromate

CrO₄^2-

chromate

O₂^2-

peroxide