Question

Which one of the following species possesses maximum size

• A. $Na^{+}$
• B. $F^{-}$
• C. $Ne$
• D. $O^{2 -}$

Answer 1

Answer: (D)

$O^{2 -}$

Answer 2

All are isoelectronic but $O^{2 -}$ has lowest charge among them. So it is largest in size.