Question

The correct sequence which shows decreasing order of the ionic radii of the elements is
(a) Al³⁺ > Mg²⁺ > Na⁺ > F⁻ > O²⁻
(b) Na⁺ >Mg²⁺ > Al³⁺ > O²⁻ > F⁻
(c) Na⁺ > F⁻ > Mg²⁺ > O²⁻ > Al³⁺
(d) O²⁻ > F⁻ > Na⁺ > Mg²⁺ > Al³⁺

Answer 1

(d) is the right answer

the more positive charge , the smaller thae ionic radius and negative charge means adding electrons.

Answer 2

D is the correct option