Question

The valency of noble gases is zero.
A. True
B. False

Answer 1

To know whether valency if noble gases is 0 or not we need to know about their properties and electronic configuration. Valency is defined as the combining power of an element. The valency of an element is related to how many electrons are present in the outer shell.

Complete step by step answer:
Noble gas is any of the seven chemical elements present in the Group 18 of the periodic table. The elements present are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn).
The total no of electrons present in the outer shell of an atom determines its valency, the valency of an element measures its ability to combine with the other elements.The valency is determined by the number of electrons present in the outer shell of each atom of an element.
Valency is known as the combining power of an element with other atoms generally with hydrogen atoms. Yes noble gases have zero valency as its combining capacity is zero. Their octet is fully filled and it doesn't need any removal or addition of electrons for the completion of the octet as they are already full.
So, the correct answer is “Option A”.

Note: Some of the characteristics of the noble gases are that all of them conduct electricity, fluoresce, are odorless and colorless, and can be used in many conditions when a stable element is required to take care of a secure and constant environment. This chemical series consists of helium, neon, argon, krypton, xenon, and radon as discussed above.