Which of the following is not a noble gas ?

H e

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N e

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A g

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A r

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Solution

The correct option is C $A g$
$A g$ is metal and not a noble gas. It is a d-block element.

$H e, N e$ and $A r$ are noble gases.

Hence, option C is correct.

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Similar questions

The noble gas having only two electons in its valence shell is:
(a) Ar (b) Ne (c) He (d) Kr

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