Solid State Question 158

Question: If ‘Z’ is the number of atoms in the unit cell that represents the closest packing sequence $ —A\ B\ C\ A\ B\ C–\ -, $ the number of tetrahedral voids in the unit cell is equal to

[AIIMS 2005]

Options:

A) Z

B) 2 Z

C) Z/2

D) Z/4

Show Answer

Answer:

Correct Answer: B

Solution:

Number of tetrahedral voids in the unit cell = 2 ยด number of atoms = 2Z.



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