Notifications
Clear all
0
11/01/2022 7:31 pm
Topic starter
The correct order of ionic radii for the ions, P3-, S2-, Ca2+, K+, Cl- is
(1) P3- > S2- > Cl- > K+ > Ca2+
(2) Cl- > S2-> P3- > Ca2+ > K+
(3) P3- > S2- > Cl- > Ca2+ > K+
(4) K+ > Ca2+ > P3- > S2- > Cl-
1 Answer
0
11/01/2022 7:34 pm
Correct answer: (1) P3- > S2- > Cl- > K+ > Ca2+
Explanation:
P3- > S2- > Cl- > K+ > Ca2+
(Correct order of ionic radii) all the given species are isoelectronic species.
In isoelectronic species size increases with increase of negative charge and size decreases with increase in positive charge.