Polyatomic ion list 1

Ammonium

Polyatomic cation with the formula $NH_4^+$.

Acetate

Polyatomic anion with the formula $CH_3COO^-$ or $C_2H_3O_2^-$.

Cyanate

Polyatomic anion with the formula $CNO^-$ or $OCN^-$.

Cyanide

Polyatomic anion with the formula $CN^-$.

Hydroxide

Polyatomic anion with the formula $OH^-$.

Nitrite

Polyatomic anion with the formula $NO_2^-$.

Nitrate

Polyatomic anion with the formula $NO_3^-$.

Hypochlorite

Polyatomic anion with the formula $ClO^-$.

Chlorite

Polyatomic anion with the formula $ClO_2^-$.

Chlorate

Polyatomic anion with the formula $ClO_3^-$.

Perchlorate

Polyatomic anion with the formula $ClO_4^-$.

Hypobromite

Polyatomic anion with the formula $BrO^-$.

Bromite

Polyatomic anion with the formula $BrO_2^-$.

Bromate

Polyatomic anion with the formula $BrO_3^-$.

Perbromate

Polyatomic anion with the formula $BrO_4^-$.

Hypoiodite

Polyatomic anion with the formula $IO^-$.

Iodite

Polyatomic anion with the formula $IO_2^-$.

Iodate

Polyatomic anion with the formula $IO_3^-$.

Periodate

Polyatomic anion with the formula $IO_4^-$.

Carbonate

Polyatomic anion with the formula $CO_3^{2-}$.

Chromate

Polyatomic anion with the formula $CrO_4^{2-}$.

Sulfite

Polyatomic anion with the formula $SO_3^{2-}$.

Sulfate

Polyatomic anion with the formula $SO_4^{2-}$.

Phosphite

Polyatomic anion with the formula $PO_3^{3-}$.

Phosphate

Polyatomic anion with the formula $PO_4^{3-}$.

Thiocyanate

$$SCN^-$$

Amide

NH₂^1-

Azide

N₃^1-

Carbide

C₂^2-

Hydrogen Sulfide

HS^1-

Imide

NH^2-

Mercury(I)

Hg₂²⁺

Superoxide

O₂^1-