Chemistry Polyatomic Ions

Ammonium Ion

NH₄⁺

Acetate Ion

C₂H₃O_2.^-

Azide ion

N₃^-

Carbonate Ion

CO₃^2-

Bicarbonate ion

HCO₃^-

Hypochlorite Ion

CIO^-

Chlorite ion

ClO₂ ^-

Chlorate ion

ClO₃^-

Perchlorate ion

ClO₄^-

Chromate ion

CrO₄ ^2-

Dichromate ion

Cr₂O₇^2-

Cyanate ion

OCN^-

Thiocyanate ion

SCN^-

Cyanide ion

CN^-

Hydroxide ion

OH^-

Nitrite ion

NO₂^-

Nitrate ion

NO₃^-

Oxalate ion

C₂O₄^2-

Permanganate ion

MnO₄^-

Phosphate ion

PO₄^3-

Hydrogen phosphate ion

HPO₄^2-

Dihydrogen phosphate ion

H₂PO_4^-

Sulfite ion

SO₃^2-

Bisulfite ion

HSO₃^-

Sulfate ion

SO₄^2-

Bisulfate ion

HSO₄^-

Thiosulfate ion

S₂O₃^2-