Question

State whether the following ion or radical given below of a non-metallic element exhibits valency: 1^–, 2^– or 3^–. (write the ion or radical with the correct valency).

Carbonate

Answer 1

Name	Symbol	Ion	Valency
Carbonate	\[\ce{CO3}\]	\[\ce{[CO3]^{2-}}\]	−2