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The number of tetrahedral and octahedral voids in CCP unit cell are respectively
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The correct answer is:
8,4
In a closed packed structure [CCP or HCP] if there are $n$ spheres (atoms or ions) in packing; then;
Number of octahedral voids $=n$
Number of tetrahedral voids $=2 n$
In CCP;
Number of atoms $=4$
So number of octahedral voids $=4$
Number of tetrahedral voids $=8$
Number of octahedral voids $=n$
Number of tetrahedral voids $=2 n$
In CCP;
Number of atoms $=4$
So number of octahedral voids $=4$
Number of tetrahedral voids $=8$
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