Valency is the number of electrons an atom can gain, lose or share in order to attain a stable electron configuration. It is also known as oxidation state.
The valency of HCO3^- (bicarbonate) is -1 The valency of HSO4^- (bisulfate) is -1 The valency of H2PO4^- (dihydrogen phosphate) is -1 The valency of CO3^2- (carbonate) is -2.
It's important to note that in polyatomic ions, the overall charge of the ion determines the valency.
Valency is the number of electrons an atom can gain, lose or share in order to attain a stable electron configuration. It is also known as oxidation state.
The valency of HCO3^- (bicarbonate) is -1
The valency of HSO4^- (bisulfate) is -1
The valency of H2PO4^- (dihydrogen phosphate) is -1
The valency of CO3^2- (carbonate) is -2.
It's important to note that in polyatomic ions, the overall charge of the ion determines the valency.