Polyatomic Ions

Ammonium

NH₄ ⁺

Acetate

CH₃CO₂^-

Cyanide

CN^-

Hypochlorite

ClO^-

Chlorite

ClO₂^-

Chlorate

ClO₃^-

Perchlorate

ClO₄^-

Dihydrogen phosphate

H₂PO₄^-

Hydrogen carbonate

HCO₃^-

Hydrogen Sulfate

HSO₄^-

Hydroxide

OH^-

Permaganate

MnO₄^-

Nitrite

NO₂^-

Nitrate

NO₃^-

Carbonate

CO₃^2-

Chromate

CrO₄^2-

Dichromate

Cr₂O₇^2-

Peroxide

O₂^2-

Hydrogen phosphate

HPO₄^2-

Sulfite

SO₃^2-

Sulfate

SO₄^2-

Thiosulfate

S₂O₃^2-

Phosphate

PO₄^3-