Common Polyatomic Negative Ions

A set of vocabulary flashcards covering the common polyatomic negative ions listed in Table 1.6, categorized by charges of -1, -2, and -3.

Hydrogen carbonate (bicarbonate)

$$HCO_3^-$$

Acetate

$$CH_3CO_2^-$$

Nitrate

$$NO_3^-$$

Nitrite

$$NO_2^-$$

Permanganate

$$MnO_4^-$$

Cyanide

$$CN^-$$

Hydroxide

$$OH^-$$

Perchlorate

$$ClO_4^-$$

Chlorate

$$ClO_3^-$$

Chlorite

$$ClO_2^-$$

Hypochlorite

A $-1$ polyatomic negative ion with the chemical formula $ClO^-$

Carbonate

A $-2$ polyatomic negative ion with the chemical formula $CO_3^{2-}$

Sulfate

A $-2$ polyatomic negative ion with the chemical formula $SO_4^{2-}$

Sulfite

A $-2$ polyatomic negative ion with the chemical formula $SO_3^{2-}$

Thiosulfate

A $-2$ polyatomic negative ion with the chemical formula $S_2O_3^{2-}$

Peroxide

A $-2$ polyatomic negative ion with the chemical formula $O_2^{2-}$

Chromate

A $-2$ polyatomic negative ion with the chemical formula $CrO_4^{2-}$

Dichromate

A $-2$ polyatomic negative ion with the chemical formula $Cr_2O_7^{2-}$

Phosphate

A $-3$ polyatomic negative ion with the chemical formula $PO_4^{3-}$

Borate

A $-3$ polyatomic negative ion with the chemical formula $BO_3^{3-}$

Arsenate

A $-3$ polyatomic negative ion with the chemical formula $AsO_4^{3-}$