The edge length of the unit cell, if the radius of Mn ion is 0.65 A and that of F- ion is 1.35 A, is — Solid State Chemistry Question
Question
The edge length of the unit cell, if the radius of Mn ion is 0.65 A and that of F- ion is 1.35 A, is
Answer: B
💡 Solution & Explanation
Along the cell edge, the corner Mn ion and the edge-centered F- ion touch. Therefore, the edge length of the unit cell is: a = 2 * (r_Mn + r_F) = 2 * (0.65 + 1.35) = 4.00 A.
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