Question

Name an element which has no valency

Answer 1

Answer:

◾The valence or valency of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules. ◾Noble gas family has zero valency.

◾ Helium, Neon, Radon and Argon have zero valency because they have their outer shell completely filled and are chemically inert gas.

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Answer 2

Explanation:

Helium has zero valency.