Question
Chemistry Question on The solid state
The vacant space in bcc lattice unit cell is:
A
0.23
B
0.32
C
0.26
D
0.48
Answer
0.32
Explanation
Solution
The vacant space in bcc lattice unit cell is 0.32.
BCC stands for body-centered cubic lattice, which is one of the specific arrangements of atoms in the crystalline state. Eight atoms occupy the corners of the cube in the BCC unit cell. There is one atom at the center of the cube as well.
Packing efficiency in bcc lattice = 68%
∴ vacant space in bcc lattice = 100−68=32%
Therefore, the correct answer is option B.