Common Anions

H^-

hydride ion

F^-

fluoride ion

Cl^-

chloride ion

Br^-

bromide ion

I^-

iodide ion

CN^-

cyanide ion

OH^-

hydroxide ion

O^2-

oxide ion

O₂^2-

peroxide ion

S^2-

sulfide ion

N^3-

nitride ion

CH₃COO^- or C₂H₃O₂^-

acetate ion

ClO₃^-

chlorate ion

ClO₄^-

perchlorate ion

NO₃^-

nitrate ion

MnO₄^-

permanganate ion

CO₃^2-

carbonate ion

CrO₄^2-

chromate ion

Cr₂O₇^2-

dichromate ion

SO₄^2-

sulfate ion

PO₄^3-

phosphate ion