Question

The valency of helium is zero because it is a

A  nobel gas

B  metal

C  non metal

D  ion

E  atom


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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

A) Noble Gas

The noble gases are the chemical elements in group 18 of the periodic table. They are the most stable due to having the maximum number of valence electrons their outer shell can hold. This chemical series contains helium, neon, argon, krypton, xenon, and radon. ..