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.