Medium
For $Na^{+}$,$Mg^{2+}$,$F^{-}$,and $O^{2-}$; the correct order of increasing ionic radii is
- A$Mg^{2+} < Na^{+} < F^{-} < O^{2-}$
- B$Na^{+} < Mg^{2+} < F^{-} < O^{2-}$
- C$Mg^{2+} < Na^{+} < O^{2-} < F^{-}$
- D$Mg^{2+} < O^{2-} < Na^{+} < F^{-}$
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