For the following question, answer is given as Option-a. Kindly give explanation for the answer.
In diamond, the co-ordination number of carbon is ...... and its unit cell has ...... carbon atoms. a) 4, 8 b) 4, 6 c) 6, 4 d) 4, 4
The diamond cubic structure may be visualised as fcc with half of the tetrahedral voids filled. Hence, (a).