Question

which is greater in size....Cs+ or O-2 ion​

Answer 1

Answer:

O-2 is the answer.. .... .

Answer 2

Answer:

Explanation:i will say one follow it blindly

First see zeff

Zeff=z-a

=no. of protons - valence electrons

Zeff means force of attraction between nucleus and valence electrons

More z eff less size

So zeff of o-2 = 8-8=0

Z eff of cs+ = 55-32=13

So size of o-2 is more