The Solid State - Result Question 17
####17. The number of octahedral void(s) per atom present in a cubic close-packed structure is :
[2012]
(a) 1
(b) 3
(c) 2
(d) 4
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Solution:
- (a) Number of octahedral voids in $c c p$ is equal to effective number of atoms.
In $c c p$, effective number of atoms are 4 so, 4 octahedral voids.
So, 1 octahedral voids per atom.