Question

Question: Answered & Verified by Expert

The ions $\mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Na}^{+}, \mathrm{Mg}^{2+}$ and $\mathrm{Al}^{3+}$ are isoelectronic. Their ionic radii show:

ChemistryStructure of AtomJEE Main

Options:

A a significant increase from $\mathrm{O}^{2-}$ to $\mathrm{Al}^{3+}$
B a significant decrease from $\mathrm{O}^{2-}$ to $\mathrm{Al}^{3+}$
C an increase from $\mathrm{O}^{2-}$ to $\mathrm{F}^{-}$and then decrease from $\mathrm{Na}^{+}$to $\mathrm{Al}^{3+}$
D a decrease from $\mathrm{O}^{2-}$ to $\mathrm{F}^{-}$and then increase from $\mathrm{Na}^{+}$to $\mathrm{Al}^{3+}$