Question

The total number of tetrahedral voids in the face centred unit cell is________.

• A. $6$
• B. $8$
• C. $10$
• D. $12$

Answer 1

Answer: (B)

No. of atoms per unit cell in face centred unit cell $=4$
$\therefore$ No. of tetrahedral voids $=2\times 4=8$