Question

1).In which of the following pairs, the ions are isoelectronic?

(i) Na+ , Mg2+ (ii) Al3

+,0-

(ill) Na+ , 02-

(iv) N3-

, Cl-

(a) Only (i) (b) Both (i) & (iii) (c) Both (iii) & (iv)

Answer 1

Hi , there !!!


here is your answer !!!

isoelectric are those element who have same number of Electron s


so in this.


Na+

Mg2+

Al³+



have 10 Electron s



3 )

Na+

O2-



have same number of Electrons ie 10



hence , option number B is Correct


hope it helps you !!

thanks !!


Ranjan kumar