Question

Why are cations smaller than their parent atom? A: Ca^2+ or Al^3+ B: Na^+ or Cl^+ C: P^3- or S^2- D: F^- or Cl^- Answers are appreciated?

Answer 1

A. `Ca^(2+)` or `Al^(3+)` are cations

Explanation:

These ions are smaller than their parent atoms because they tend to loss their valance electrons to achieve stability.