Diamond structure is based on a face cen...

Diamond structure is based on a face centred cubic lattice where four out of the eight tetrahedral holes are occupied by carbon atoms. Every atom in this structure is surrounded tetrahedrally by four other carbon atoms. How many carbon atoms per unit cell in diamond structure ?

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There are 8 carbon atoms present per unit cell in diamond, each having a coordination number 4.

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Ina cubic unit cell, seven of the eight corners are occupied by atoms A and centres of faces are occupied by atoms B. The general formula of the compound is:

`A_(7)B_(6)`

`A_(7)B_(12)`

`A_(7)B_(24)`

`A_(24)B_(7)`

`A_(7)B_(6)`

`A_(7)B_(12)`

`A_(7)B_(24)`

`A_(24)B_(7)`.

`(sqrt(3))/(4)`

`sqrt((1)/(4))`

`1/4`

`(1)/(sqrt2)`