Question

From the given set of species, point out the element having highest Z(eff.)

Chapter Periodic table and periodicity

(a) O2-, F-, Na+

(b) Li, Be, Na

(c) He, Li+, H-​

Answer 1

Answer:

option a)

Explanation

The atomic radius is lower due to high effective nuclear charge.. and o2- f- and Na+ has low effective nuclear charge..

Hence has highest atomic radius.