1.

CaS exists in a cubic close packed arrangement of `S^(2-)` ions in which `Ca^(2+)` ions occupy 1/2 of the available tetrahedral holes. How many `Ca^(2+)and S^(2-)` ions are contained in the unit cell?A. `25%`B. `50%`C. `75%`D. `100%`

Answer» Correct Answer - B


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