Solid State Question 292

Question: Which one of the following statements about packing in solids is incorrect-

Options:

A) Coordination number in bcc mode of packing is 8.

B) Coordination number in hcp mode of packing is 12.

C) Void space in hcp mode of packing is 32%.

D) Void space is ccp mode of packing is 26%.

Show Answer

Answer:

Correct Answer: C

Solution:

[c] The hcp arrangement of atoms occupies 74% of the available space and thus has 26% vacant space.