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
1,1
B
2,4
C
4,4
D
4,2
Text Solution
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The correct Answer is:
C
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