Question

the number of carbon atoms per unit cell of diamond unit cell is 8 ,verify how it get

Answer 1

Answer:

Diamond has fcc unit cell structure made up of atoms. C atoms are also present in one half of the tetrahedral voids. There are 8 tetrahedral voids in fcc structure. Thus, total 4+4=8 C atoms are present per unit cell of diamond.

Answer 2

Answer:

Diamond has fcc unit cell structure made up of  atoms.  

This accounts for 8×  81 ​  +6×  2 1  =1+3=4 C atoms

C atoms are also present in one half of the tetrahedral voids.  

There are 8 tetrahedral voids in fcc structure.

This accounts for remaining 8×  2 1  =4 C atoms

Thus, total 4+4=8 C atoms are present per unit cell of diamond.

Explanation:

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