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Ionic radii of (1) Ti^(4+) lt Mn^(7+) ...

Ionic radii of
(1) `Ti^(4+) lt Mn^(7+)`
(2) `""^(35)Cl^(-) lt ""^(37)Cl^(-)`
(3) `K^(+) gt Cl^(-)`
(4)`P^(5+) gt P^(3+)`
select the correct order

Text Solution

Verified by Experts

The correct Answer is:
4
(1) Since `Ti^(4+) and Mn^(7+)` are isoelectronic, hence, `Mn^(7+) lt Ti^(4+)`.
(2) `""^(35)Cl^(-) and ""^(37)Cl^(-)` are isotopes, hence, `""^(35)Cl cong ""^(37)Cl^(-)`
(3) Again, `K^+ and Cl^(-)` are isoelectronic, hence, `K^+ lt Cl^(-)`
(4) `P^(3+)` has 12 electrons and 15 protons, while `P^(5+)` has 10 electrons and 15 protons, hence `P^(5+) lt P^(3+)`
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