Q. The correct order of ionic radius is
A) $Ti^{4 +} < Mn^{7 +}$
B) $\ ^{35}Cl^{-} >^{37}Cl^{-}$
C) $K^{+} > Cl^{-}$
D) $P^{3 +} > P^{5 +}$
Explanation
(d)
Ionic radius $\propto \frac{1}{Z_{eff}}$
Since, $P^{5 +}$ has higher $Z_{eff}\$as compared to $P^{3 +}$, it has smaller ionic radii
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.