Question

the particles in solid ki, a stable ionic compound, are arranged to maximize coulombic attractions while minimizing coulombic repulsions among the particles. which of the following diagrams best represents the structure of solid ki?

Explanation:

Step1: Analyze ionic structure principles

Ionic compounds arrange ions to maximize coulombic attractions (opposite - charge interactions) and minimize coulombic repulsions (like - charge interactions). In an ionic solid like KI (potassium iodide), \(K^{+}\) (cation) and \(I^{-}\) (anion) should be arranged so that each ion is surrounded by ions of the opposite charge.

Step2: Examine each option

• Option A: There is a cation - cation (like - charge) interaction. This would increase coulombic repulsions, so it is incorrect.
• Option C: There is an anion - anion (like - charge) interaction. This would increase coulombic repulsions, so it is incorrect.
• Option B: Each cation is adjacent to an anion and vice - versa. This arrangement maximizes coulombic attractions (\(K^{+}-I^{-}\) interactions) and minimizes coulombic repulsions (no like - charge ions adjacent to each other).

Answer:

B.