1.

The number of carbon atoms per unit cell of diamond is

Answer»

8
6
1
4

Solution :In DIAMOND CARBON FORMING fcc. Carbon occupies corners and face CENTRES and also occupying half of the tetrahedral voids.
`(N_(c))/(8) + (N_(f))/(2) + 4` C atoms in Td voids
`((8)/(8)) + ((6)/(2)) + 4 = 8`


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