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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

181 pm

B

108 pm

C

128 pm

D

157 pm

Text Solution

Verified by Experts

Copper crystallises in fcc lattice. If, r = radius and a = edge length then `r=(a)/(2sqrt(2))=(361)/(2sqrt(2))"pm"=127.633 "pm" ~~128` pm
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VMC MODULES ENGLISH-THE SOLID STATE-LEVEL-1
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