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The total of tetrahedral voids in the f...

The total of tetrahedral voids in the face centred unit cell is …………. .

A

6

B

8

C

10

D

12

Text Solution

Verified by Experts

The correct Answer is:
B
Fee unit cell contains 8 tetrahedral voids at centre of each 8 smaller cube of an unit cell as shown below.

Number of atoms in fcc unit cell=4
Number of octahedral voids =4
Number of tetrahedral voids=8
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