What are the coordination numbers of Ca²⁺ and F ^- ions,respectively,in fluorite? The unit cell is shown below

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The coordination number for Ca²⁺ ion in fluorite is 8. This is because the Ca ion is located at the center of a cube and is surrounded by eight sulphide ions, each of which share a corner with the Ca ion. The coordination number for FF1F1F1S1^F1F1F10 ion in fluorite is 4. This is because the fluoride ions are located on the corners of the cube and are surrounded by four calcium ions, each of which is located at the center of a face of the cube.

What Are the Coordination Numbers of Ca2+ and F -

What Are the Coordination Numbers of Ca²⁺ and F ^-