Polyatomic Cation and Anions

Ammonium

NH₄¹⁺

Carbonate

CO₃^2-

Hydrogen Carbonate

HCO₃^1-

Perchlorate

ClO₄^1-

Chlorate

ClO₃^1-

Chlorite

ClO₂^1-

Hypochlorite

ClO^1-

Chromate

CrO₄^2-

Dichromate

Cr₂O₇^2-

Cyanate

OCN^1-

Thiocyanate

SCN^1-

Hydroxide

OH^1-

Peroxide

O₂^2-

Iodate

IO₃^1-

Nitrate

NO₃^1-

Nitrite

NO₂^1-

Permanganate

MnO₄^1-

Sulfate

SO₄^2-

Sulfite

SO₃^2-

Thiosulfate

S₂O₃^2-

Phosphate

PO₄^3-