Periodic TableHard

Question

Ionic radii of :

Options

A.Ti4+ < Mn7+
B.35Cl-, 37Cl-
C.K+ > C- 
D.P3+ > P5+

Solution

(i) Higher is the charge on cation, smaller is the size so P3+ > P5+ and not Ti4+ < Mn7+
(ii) Cation is always smaller than isoelectronic anion so K+ > Cl-
(iii) Number of neutron do not affect radii so35Cl- 37Cl-

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