What are the coordination numbers of Ca²⁺ and F^- ions,respectively,in fluorite? The unit cell is shown below A)6 and 8 B)4 and 8 C)8 and 8 D)6 and 4 E)8 and 4

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Quizplus · Accepted Answer

The coordination number of CaS1U1P12+S1S1P0 ion is 8, as it is surrounded by 8 nearest neighbor F1F1 ions. The coordination number of S1S1P0 in the same ion is 4, as it is only surrounded by 4 nearest neighbor Ca ions. 
The coordination number of FF1F1F1S1S1U1P1S1S1P0 ions is also 8, as each F1F1 ion is surrounded by 8 nearest neighbor S1S1 ions. The coordination number of S1S1P0 ion in the same ion is 4, as it is only surrounded by 4 nearest neighbor Ca ions.

What Are the Coordination Numbers of Ca2+ and F- Ions,respectively,in

What Are the Coordination Numbers of Ca²⁺ and F^- Ions,respectively,in