Q. In the isoelectronic species the ionic radii $(\mathring{\mathrm{A}})\ of\ N^{3 -},\ O^{2 -}\ and\ F^{-}$ are respectively given by
A) 1.71, 1.40, 1.36
B) 1.71, 1.36, 1.40
C) 1.36, 1.40, 1.71
D) 1.36, 1.71, 1.40
Explanation
(a)
The order of the ionic radii of the given species is
$F^{-} < O^{2 -} < N^{3 -}$
or 1.36 1.40 1.71
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.