Q.

The correct order of the size is

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away
An Intiative by Sri Chaitanya

a

Ca2+  >  K+  >Ar  > Cl−  > S2−

b

K+  >  Ca2+  > Cl− > Ar  > S2−

c

S2− >Cl− >  Ar  >K+  >  Ca2+

d

S2− >Ar >  Cl−  >Ca2+  > K+

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

All the species are isoelectronic therefore the greater the nuclear charge the lesser will be the size.As -ve charge increases size increases and as +ve charge increases size decreases.
Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon
The correct order of the size is