1.

The number of carbon atoms per unit cell of diamond is …………………. .

Answer»

8
6
1
4

Solution :Hint : 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)+4C" atoms in Td voids"`
`((8)/(8))+((6)/(2))+4=8`


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