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Copper crystallises in fcc with a unit c...

Copper crystallises in fcc with a unit cell length of 361 pm. What is the radius of copper atom?

A

157 pm

B

181 pm

C

127 pm

D

108 pm

Text Solution

Verified by Experts

The correct Answer is:
C
For fcc, `r=sqrt2/4 a =sqrt2/4xx361=(1.414xx361)/4`=127 pm
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