The element expected to form the largest ion | vedclass

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(D) To achieve the nearest noble gas configuration,these elements form the following ions: $Na^+$,$O^{2-}$,$F^-$,and $N^{3-}$.These ions are isoelectr

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$N$

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(D) To achieve the nearest noble gas configuration,these elements form the following ions: $Na^+$,$O^{2-}$,$F^-$,and $N^{3-}$.These ions are isoelectronic,meaning they all have the same number of electrons ($10$ electrons).For isoelectronic species,the ionic size increases as the negative charge on the anion increases because the effective nuclear charge decreases.Comparing the charges: $N^{3-}$ has the highest negative charge,therefore it has the largest ionic size.

The element expected to form the largest ion to achieve the nearest noble gas configuration is

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