Which of the following unit cells has the lowest packing efficiency?
A)simple cubic
B)face-centered cubic
C)body-centered cubic
D)both face-centered and body-centered cubic
E)Simple, face-centered, and body-centered cubic all have the same packing efficiency.

Question

Quizplus · Accepted Answer

The simple cubic unit cell has the lowest packing efficiency because only 52.4% of the space is filled with atoms or ions. In contrast, the face-centered cubic has a packing efficiency of 74%, and the body-centered cubic has a packing efficiency of 68%.

Which of the Following Unit Cells Has the Lowest Packing