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Stability of Fully Filled and Half Filled Orbitals

is not the no...

Question

_________ is not the noble gases.

A

H e

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B

N e

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C

A r

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D

B e

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Solution

The correct option is D $B e$
$_{4} B e = 1 s^{2} 2 s^{2}$ , $L$ shell of $B e$ is not fully filled.

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