Which atom or ion has a pseudo inert gas conf | vedclass

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(D) pseudo inert gas configuration is defined as having $18$ electrons in the outermost shell,represented by the electronic configuration $ns^2 np^6 n

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(D) pseudo inert gas configuration is defined as having $18$ electrons in the outermost shell,represented by the electronic configuration $ns^2 np^6 nd^{10}$.$Zn^{2+}$ $(Z=30)$: The electronic configuration of $Zn$ is $[Ar] 3d^{10} 4s^2$. Removing $2$ electrons gives $Zn^{2+} = [Ar] 3d^{10}$,which has $18$ electrons in the outermost shell.$Cu^{+}$ $(Z=29)$: The electronic configuration of $Cu$ is $[Ar] 3d^{10} 4s^1$. Removing $1$ electron gives $Cu^{+} = [Ar] 3d^{10}$,which has $18$ electrons in the outermost shell.$Pd$ $(Z=46)$: The electronic configuration of $Pd$ is $[Kr] 4d^{10} 5s^0$,which also exhibits a pseudo inert gas configuration.Therefore,all the given species possess a pseudo inert gas configuration.

Which atom or ion has a pseudo inert gas configuration?

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