Question

Is the valency of an element, same as its oxidation number?

Answer 1

Valency is the property of an isolatedatom while oxidation state is calculated for an atom is present in a molecule i.e, in a bonded state. 3.Valency of an element remains thesame while its oxidation state may be different in different molecules.

Answer 2

the valency of an element is not same as it's oxidation number