Q. In a cubic unit cell of bcc structure, the lattice points ($ie$, number of atoms) are
A) 2
B) 6
C) 8
D) 12
Explanation
(a) Number of lattice points in a crystal structure will be
$n = \frac{N_{C}}{8} + \frac{N_{F}}{2} + \frac{N_{i}}{1}$
In bcc crystal, $N_{C} = 8,\ N_{F} = 0\ and\ N_{i} = 1$
$n = \frac{8}{8} + \frac{0}{1} + \frac{1}{1} = 2$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.