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The number of atoms in a cubic based uni...

The number of atoms in a cubic based unit cell having one atom on each corner and two atoms on each body diagonal is

A

8

B

6

C

4

D

9

Text Solution

Verified by Experts

There are four body diagonals. Atoms on the body diagonals are not shared by any other unit cell.
Contribution by atoms on corners = `8xx(1)/(8)` and Contribution by atoms on body diagonal = `2xx4 = 8`
Hence, total number of atoms = 9
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