Chemistry - Polyatomic Ions

CN^-

cyanide

NO₂^-

nitrite

CO₃^2-

carbonate

SO₄^2-

sulfate

ClO₂^-

chlorite

H₂PO₄^-

dihydrogen phosphate

MnO₄^-

permanganate

BrO₃^-

bromate

NH₄⁺

ammonium

NO₃^-

nitrate

HPO₄^2-

hydrogen phosphate

IO₄^-

periodate

ClO₃^-

chlorate

OH^-

hydroxide

ClO₄^-

perchlorate

B₄O₇^2-

borate

SO₃^2-

sulfite

C₂H₃O₂^-

acetate

CrO₄^2-

chromate

Cr₂O₇^2-

dichromate

PO₄^3-

phosphate

C₂O₄^2-

oxalate

AsO₄^3-

arsenate

PO₃^3- 

phosphite

IO₃^-

iodate

SiO₃^2-

silicate

S₂O₃^2-

thiosulfate

HCO₃^- 

bicarbonate

HSO₄^- 

hydrogen sulfate

ClO^-

hypochlorite

O₂^2-

peroxide

C₄H₄O₆^2- 

tartrate