Q. Which one of the following ions is not isoelectronic with $O^{2 -}$?
A) $Ti^{+}$
B) $Na^{+}$
C) $F^{-}$
D) $N^{3 -}$
Explanation
(a)
$\ _{8}O^{2 -}$ has 10 electrons. $\ _{18}Ti^{+}$ has 80 electrons.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.