What is the correct order of decreasing size of the following ions? A) P^3- Cl^- K⁺ Ca²⁺ B) Ca²⁺ K⁺ Cl^- P^3- C) K⁺ Cl^- Ca²⁺ P^3- D) K⁺ Cl^- P^3- Ca²⁺ E) None of these relative size statements is correct.

Question

What is the correct order of decreasing size of the following ions? A) P^3- > Cl^- > K⁺ > Ca²⁺ B) Ca²⁺ > K⁺ > Cl^- > P^3- C) K⁺ > Cl^- > Ca²⁺ > P^3- D) K⁺ > Cl^- > P^3- > Ca²⁺ E) None of these relative size statements is correct.

Quizplus · Accepted Answer

The size of ions generally decreases with increasing positive charge and increases with increasing negative charge. P^3- is the largest due to its high negative charge, followed by Cl^-, K⁺, and Ca²⁺ being the smallest due to its high positive charge.

What Is the Correct Order of Decreasing Size of the Following