Polyatomic Ions (AP CHEM)

Acetate

C₂H₃O₂^-

Ammonium

NH₄⁺

Carbonate

CO₃^2-

Chlorate

ClO₃^-

Chromate

CrO₄^2-

Cyanide

CN^-

Dichromate

Cr₂O₇^2-

Bicarbonate (Hydrogen Carbonate)

HCO₃ ^-

Bisulfate (Hydrogen Sulfate)

HSO₄ ^-

Bisulfite (Hydrogen Sulfite)

HSO₃ ^-

Hydroxide

OH^-

Hypochlorite

ClO ^-

Nitrate

NO₃ ^-

Nitrite

NO₂ ^-

Perchlorate

ClO_{4 ^-}

Permanganate

MnO_{4 ^-}

Phosphate

PO_{4 ^3-}

Sulfite

SO_{3 ^2-}

Sulfate

SO_{4 ^2-}

Hydrogen Phosphate

HPO₄^2-

Dihydrogen Phosphate

H₂PO₄^-

Chlorite

ClO₂^-

Peroxide

O₂^2-

Bromate

BrO₃^-