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Copper crystalline in a face centred cub...

Copper crystalline in a face centred cubic lattice with a unit cell length of `361p m` .What is the radius of copper atom in p m?

A

128

B

157

C

181

D

108

Text Solution

Verified by Experts

The correct Answer is:
A
In case of face centre cubic lattice, radius = `(a)/(2sqrt2)`
`:.` Radius of copper atom (fcc lattice)= `(361)/(2xx1.41)` = 128.01 pm
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