Which of the following species has the larges | vedclass

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(D) To determine the largest radius,we compare the electronic configurations and nuclear charges of the given species:$1$. $Na$ $(Z=11)$: Electronic c

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$Na$

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(D) To determine the largest radius,we compare the electronic configurations and nuclear charges of the given species:$1$. $Na$ $(Z=11)$: Electronic configuration is $1s^2 2s^2 2p^6 3s^1$. It has $3$ shells.$2$. $Na^{+}$ $(Z=11)$: Electronic configuration is $1s^2 2s^2 2p^6$. It has $2$ shells.$3$. $F$ $(Z=9)$: Electronic configuration is $1s^2 2s^2 2p^5$. It has $2$ shells.$4$. $F^{-}$ $(Z=9)$: Electronic configuration is $1s^2 2s^2 2p^6$. It has $2$ shells.Comparing these,$Na$ has the largest radius because it has electrons in the $3rd$ shell $(n=3)$,whereas all other species have electrons only up to the $2nd$ shell $(n=2)$.

Which of the following species has the largest radius?

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