Polyatomic Ions

NH₄⁺

ammonium

H₃O⁺

hydronium

Hg₄²⁺

mercury(I)

H₂PO₃^-

dihydrogen phosphite

H₂PO₄^-

dihydrogen phosphate

HCO₃^-

hydrogen carbonate

HSO₃^-

hydrogen sulfite

HSO₄^-

hydrogen sulfate

NO₂^-

nitrite

NO₃^-

nitrate

OH^-

hydroxide

CH₃COO^-

acetate

CrO₂^-

chromite

CN^-

cyanide

CNO^-

cyanate

CNS^-

thiocyanate

MnO₄^-

permanganate

ClO^-

hypochlorite

ClO₂^-

chlorite

ClO₃^-

chlorate

ClO₄^-

perchlorate

BrO^-

hypobromite

BrO₂^-

bromite

BrO₃^-

bromate

BrO₄^-

perbromate

IO^-

hypoiodite

IO₂^-

iodite

IO₃^-

iodate

IO₄^-

periodate

N₃^-

azide

HPO₃^2-

hydrogen phosphite

HPO₄^2-

hydrogen phosphate

CO₃^2-

carbonate

SO₃^2-

sulfite

SO₄^2-

sulfate

S₂O₃^2-

thiosulfate

C₂O₄^2-

oxalate

CrO₄^2-

chromate

Cr₂O₇^2-

dichromate

O₂^2-

peroxide

S₂^2-

disulfide

O^2-

oxide

S^2-

sulfide

PO₄^3-

phosphate

AsO₃^2-

arsenite

AsO₄^2-

arsenate

N^3-

nitride