Question

what is heluim? And what is it's valency​

Answer 1

Explanation:

Helium has 0 valency because the electron is 2 for helium and the outer most shell is fully filled .... that is K shell contain 2 , so the valency is 0 for helium and it is known as noble gases or inert gases . its has extremely low reactive .

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Answer 2

Answer:

Explanation:

A very light colourless gas that doesn't burn, often used to fill in objects that fly in air. ex:balloons

Helium has 0 valency. Following is the reason why helium has 0 valency.

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