Solid AB has a rock salt type structure. If the radius of the cation is 200 pm, what is the maximum — Solid State Chemistry Question

💡 Solution & Explanation

In a rock salt structure, the minimum radius ratio for the octahedral void is $r_{cation}/r_{anion} = 0.414$. For maximum anion radius, $r_{anion} = r_{cation} / 0.414 = 200 / 0.414 \approx 483.1 \text{ pm}$. Therefore, correct answer is A.