Question

what is valeny? what is its use​

Answer 1

Explanation:

Valency is the combining capacity of an element. For metals, it is equal to the number of electrons in the outermost shell of theiratoms, and for nonmetals it is eight minusthe number of electrons in the outermost shell.

Answer 2

Explanation:

The capability of an atom to gain or lose it valence electrons in order to complete it's valence shell ( last shell) is known as valency.

For Example,

SODIUM

ATOMIC NUMBER- 11

ELECTRONIC CONFIGURATION- K-2,L-8,M-1