Question

Which one of the following is not an element of Noble gases?
(A) Helium
(B) Neon
(C) Xenon
(D) Hydrogen
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Answer 1

Answer:

Hydrogen..

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Answer 2

Answer:

Hydrogen.

Explanation:

Total Elements:

Helium.

Neon.

Argon.

Krypton.

Xenon.

Radon

Now Have a look on you options:

(A) Helium

(B) Neon

(C) Xenon

(D) Hydrogen

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Here we find that Hydrogen is not an element of noble Gas;

Reason Why Not hydrogen is element of Noble Gas?

No, hydrogen is not a noble gas in order be a noble gas an element must have all its valance orbitals filled in neutral atom state like hilium jast has 1s orbital in its outer shell which is fully filled with two electrons so hilium is a noble gas in case ofhydrogen it only has one electron so its not a noble gas

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So Thats why, Hydrogen is Not an element of Noble gas.