Question

Which of the following has highest ionic radius :

• A. $F^{-}$
• B. $B^{3+}$
• C. $O^{2-}$
• D. $L{i}^{+}$

Answer 1

The correct option is C $O^{2-}$

Anions are of larger radius than neutral atom and smallest is cation
$O^{3-}>F^{-}>L{i}^{+}>B{i}^{3+}$