MCQ
The correct order of increasing ionic radii is .... .
- ✓$Mg ^{2+}< Na ^{+}< F ^{-}< O ^{2-}< N ^{3-}$
- B$N ^{3-}< O ^{2-}< F ^{-}< Na ^{+}< Mg ^{2+}$
- C$F ^{-}< Na ^{+}< O ^{2-}< Mg ^{2+}< N ^{3-}$
- D$Na ^{+}< F ^{-}< Mg ^{2+}< O ^{2-}< N ^{3-}$
(Isoelectronic species)
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$M(s) \to M(g)\,\,\,\,\,\,\,\,\,\,\,\,\,\, ........(1)$
$M(s) \to M^{2+} (g) + 2e^-\,\,\,\,\,\,\,\,.......(2)$
$M(g) \to M^+(g) + e^-\,\,\,\,\,\,\,\,\,\,\,.........(3)$
$M^+ (g) \to M^{2+} (g) + e^-\,\,\,\,\,\,\,\,\,.........(4)$
$M(g) \to M^{2+} (g) +2e^-\,\,\,\,\,\,\,\,\,\,\,..........(5)$
The second ionization energy of $M$ could be calculated from the energy values assoclated with