Q. Which is the correct order of ionic sizes?) $At.\ no.\ :Ce = 58,\ Sn = 50,\ Yb = 70\ and\ Lu = 71)$
A) $Ce > Sn > Yb > Lu$
B) $Sn > Yb > Ce > Lu$
C) $Sn > Ce > Yb > Lu$
D) $Lu > Yb > Sn > Ce$
Explanation
(c)
Ionic radii $\propto \frac{1}{Z_{eff}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.