Question

- Give scientific reason for the following
a) The Valency of noble gases is zero.​

Answer 1

The valency of noble gases is zero because their octet is complete. Octet means that outer most orbit has complete eight electrons to stay stable. ... The noble gases are already stable, so their tendency to gain or lose electrons is zero. Hence, their valency is also zero.

Answer 2

Answer:

The valency is the combining power of an element with the other atoms. The valency of noble gases is zero because its combining capacity is zero. These have a complete octet. Complete octet means that the outermost shell has complete 8 electrons. So noble gases cannot gain or lose electrons in a reaction. Hence the valency of noble gases is zero.

Explanation:

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