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Question: If Z is the number of atoms in the unit cell that represents the closest packing sequence ABC ABC … ...

If Z is the number of atoms in the unit cell that represents the closest packing sequence ABC ABC … , the number of tetrahedral voids in the unit cell is equal to –

A

Z

B

2Z

C

Z2\frac{Z}{2}

D

Z4\frac{Z}{4}

Answer

2Z

Explanation

Solution

No. of Tetrahedral Void = 2 × No. of atom

Tetrahedral Void = 2Z