Ionic radii of :

Options

A. `Ti^(4+) lt Mn^(7+)`
B. `.^(35)CI^(-) lt .^(37)CI^(-)`
C. `K^(+) gt CI^(-)`
D. `P^(3+) gt P^(5+)`

Answer

D

Explanation

Larger the positive charge on the ion, smaller will be the size of ion for the saem element due to increasing `Z_(eff)` For isoelectronic species, ionic radius `prop (1)/("Nuclear charge")`
Ions formed by isotopes have very similar ionic radii due to same number of electrons and same nuclear charge.