Question

A sodium cation has different number of electrons from

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

Answer 1

Answer: (C)

$Li^{+}$

Answer 2

$Na^{+}$ has 10 electron and $Li^{+}$ has 2 electron so these are different number of electron from each other.