Chemistry, asked by neha22222222, 1 year ago

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Answered by TabishFatima786
1

No. Of unit cell in ccp =4

Voids in octahedral +tetrahedral sites =2n+n

3n

Total voids =4*3=12

HOPE Help You

Number of atoms of Au = 197/197×N(A). In N close-packed spheres there are 2N tetrahedral interstices and N octahedral interstices for a total of 3N interstices. The answer is ∴ 3N(A

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