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)

$8$

Answer 2

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