common polyatomic ions

byu chem 105

HCO₃⁻¹

bicarbonate

HPO₄⁻²

hydrogen phosphate

HSO₃⁻¹

bisulfite

OH⁻¹

hydroxide

ClO⁻¹

hypochlorite

NO₃⁻¹

nitrate

NO₂⁻¹

nitrite

ClO₄⁻¹

perchlorate

MnO₄⁻¹

permanganate

PO₄⁻³

phosphate

SO₄⁻²

sulfate

SO₃⁻²

sulfite

SCN⁻¹

thiocyanate

CH₃COO⁻¹

acetate

NH₄⁺¹

ammonium

N₃⁻1

azide

CO₃⁻²

carbonate

ClO₃⁻¹

chlorate

ClO₂⁻¹

chlorite

CrO₄⁻²

chromate

CN⁻

cyanide

Cr₂O₇⁻²

dichromate

H₂PO₄⁻¹

dihydrogen phosphate

S₂⁻²

disulfide

PO₃⁻³

phosphite