Question

Why do Helium, Neon and Argon have a zero valency?​

Answer 1

Explanation:

Neon and argon have completely filled electrons in their outermost shell with eight electrons and cannot lose, gain or share electrons with atoms of other elements. Therefore, the valency of these gases is zero.

Answer 2

Answer:

because the helum have two electrons in its only energy shell. ..As the elements have the maximum numbers of electrons in their valence(they do not any tendency to combine with other elements . hence ,helium,neon and argon have zero valency.

Explanation:

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