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Copper has face-centered cubic (fcc) lat...

Copper has face-centered cubic (fcc) lattice with interatomic spacing equal to `2.54 Å`. The value of lattice constant for this lattice is

A

3.59Å

B

2.54 Å

C

1.27Å

D

5.08Å

Text Solution

Verified by Experts

The correct Answer is:
A
For FCC `4r=a sqrt(2) " but " 2r=2.54 Å`
so ` a=(sqrt(2)) (2.54)=3.59Å`
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