Polyatomic Ions

Arsenate

Arsenate

AsO₄^-3

Phosphite

PO₃^-3

Phosphate

PO₄^-3

Sulfite

SO₃^-2

Sulfate

SO₄^-2

Peroxide

O₂^-2

Oxalate

C₂O₄^-2

Dichromate

Cr₂O₇^-2

Chromate

CrO₄^-2

Carbonate

CO₃^-2

Hydroxide

OH^-1

Permanganate

MnO₄^-1

Nitrite

NO₂^-1

Nitrate

NO₃^-1

Iodate

IO₃^-1

Bicarbonate

HCO₃^-1

Thiocyanate

SCN^-1

Cyanide

CN^-1

Hypochlorite

ClO^-1

Chlorite

ClO₂^-1

Chlorate

ClO₃^-1

Perchlorate

ClO₄^-1

Bromate

BrO₃^-1

Acetate

C₂H₃O₂^-1

Ammonium

NH₄⁺¹