Science, asked by miridreesaliajaz, 2 days ago

why do helium ,neoun have zero valency?

Answers

Answered by sameerlakhtia4488

Explanation:

Helium has two electrons in its only energy shell while Argon and Neon have 8 electrons in their valence shells. As these have maximum number of electrons in their valence shells they do not have any tendency to combine with other elements. Hence they have a valency equal to zero.

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