Polyatomic Ions Symbol --> Name

Front

NH₄+

Back

ammonium ion

Front

OH-

Back

hydroxide ion

Front

CN-

Back

cyanide ion

Front

SO₄^2-

Back

sulfate ion

Front

SO₃^2-

Back

sulfite ion

Front

HSO4-

Back

hydrogen sulfate ion

Front

C₂H₃O₂^-

Back

acetate ion

Front

ClO₄^-

Back

perchlorate ion

Front

ClO₃^-

Back

chlorate ion

Front

ClO₂^-

Back

chlorite ion