Question

The correct order of radii is

• A. $N<Be<B$
• B. $F^{-}<O^{2-}<N^{3-}$
• C. $N<Li<K$
• D. $F{e}^{3+}<F{e}^{2+}<F{e}^{4+}$

Answer 1

Answer: (B)

Among the isoelectronic species, the size increases as the negative charge increases.