Question

Consider the isoelectronic species, Na⁺, Mg²⁺, F⁻ and O²⁻. The correct order of increasing length of their radii is
(a) F⁻ < O²⁻ < Mg²⁺ < Na⁺
(b) Mg²⁺ < Na⁺ < F⁻ < O²⁻
(c) O²⁻ < F⁻ < Na⁺ < Mg²⁺
(d) O²⁻ < F⁻ < Mg²⁺ < Na⁺

Answer 1

Heya!!!!

b is the right answer

hope it helps you