NEET 2012 Chemistry question
Not in JEE Main or NEET syllabus
The number of octahedral void(s) per atom present in a cubic close-packed structure is
Answer: (2)
Solution
In a ccp (fcc) unit cell there are 4 atoms. The octahedral voids are at the body centre (1) and at the 12 edge centres (each shared by 4 cells, $12 ×
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