Which of the following ions will have the lar | vedclass

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(C) The ions $Li^{+}$,$Be^{2+}$,$O^{2-}$,and $F^{-}$ are compared based on their electronic configuration and nuclear charge.$O^{2-}$ and $F^{-}$ are

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$O^{2-}$

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(C) The ions $Li^{+}$,$Be^{2+}$,$O^{2-}$,and $F^{-}$ are compared based on their electronic configuration and nuclear charge.$O^{2-}$ and $F^{-}$ are isoelectronic with $10$ electrons $(1s^2 2s^2 2p^6)$.For isoelectronic species,the ionic radius increases as the nuclear charge $(Z)$ decreases.The atomic number of $O$ is $8$ and $F$ is $9$.Since $Z_{O} $Li^{+}$ and $Be^{2+}$ have fewer shells $(n=1)$ compared to $O^{2-}$ and $F^{-}$ $(n=2)$,so they have smaller radii.Therefore,$O^{2-}$ has the largest ionic radius.

Which of the following ions will have the largest ionic radius?

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