Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Which one of the following noble gas is not found in atmosphere? - Sarthaks eConnect
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Which one of the following noble gas is not found in atmosphere?

Which one of the following noble gas is not found in atmosphere?

A.

Rn
B.

Kr

C.

Ne

D.

Ar

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