Question

What is meant by Valency ??​

Answer 1

Answer:-

The combining capacity of an atom is known as its valency. The number of bonds that an atom can form as part of a compound is expressed by the valency of the element.

Answer 2

Explanation:

The electrons that are required by an atom of an element to complete it's octet is know as it's valency.

OR

The ability of an atom of an element to lose,gain or share electrons to complete it's octet.

Examples->

oxygen

atomic number 8

electronic configuration= 2,6

so the atom needs two electrons to complete it's octet.

hence it's valency is -2.

hope it helps you