Question

Valency is the number of electrons accepted by a noble gas.

• A. True
• B. False

Answer 1

The correct option is B False

Valency is the number of electrons that a neutral atom of an element looses, gains or share to have Noble gas configuration to become stable. Noble gas configuration is table as they have fully filled electronic shell and do not take part in forming molecule.

Noble gas does not show valency by loosing, gaining or sharing electrons.

Example:- Neon$⟶2,8$

It has fully filled shell and do not gain loose or share electron.

Valency is shown by other atoms

Example:- Calcium$⟶2,8,8,2$

Calcium looses $2$ electrons to acquire noble gas Argon configuration i.e. $2,8,8$ and hence calcium has valency $2$.

So, valency is not related to noble gas acceptance or loss of electrons.