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(A) The maximum number of unpaired electrons in a $p$-subshell occurs when the subshell is half-filled,i.e.,$np^3$ configuration.For the $4p$ subshell

Vedclass · Accepted Answer

$33$

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(A) The maximum number of unpaired electrons in a $p$-subshell occurs when the subshell is half-filled,i.e.,$np^3$ configuration.For the $4p$ subshell,the element with the $4p^3$ configuration is Arsenic $(As)$.The electronic configuration of Arsenic $(Z = 33)$ is $[Ar] 3d^{10} 4s^2 4p^3$.In the $4p$ subshell,there are $3$ unpaired electrons,which is the maximum possible for a $p$-subshell.

What is the atomic number of the element with the maximum number of unpaired $4p$ electrons?

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