Q. 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) $\frac{Z}{2}$
D) $\frac{Z}{4}$
Explanation
(b)
Number of tetrahedral voids in the unit cell =$2\ \times$ no. of atoms
$= 2Z$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.