Polyatomic Ions

ammonium

NH₄¹⁺

acetate

C₂H₃O₂^1-

bicarbonate

HCO₃^1-

chlorate

ClO₃^1-

chlorite

ClO₂^1-

hydroxide

OH^1-

nitrate

NO₃^1-

nitrite

NO₂^1-

permanganate

MnO₄^1-

carbonate

CO₃^2-

chromate

CrO₄^2-

dichromate

Cr₂O₇^2-

sulfate

SO₄^2-

sulfite

SO₃^2-

phosphate

PO₄^3-