Question

The number of octahedral void(s) per atom present in a cubic close-packed structure is ______.

Options

• 1

• 3

• 2

• 4

Answer 1

The number of octahedral void(s) per atom present in a cubic close-packed structure is 1.

Explanation:

In a cubic close-packed (ccp) or face-centred cubic (fcc) structure, the number of octahedral voids created is the same as the number of atoms in that structure. Therefore, for every atom, there is 1 octahedral void.