Copper crystallises in a f.c.c. lattice,...

Copper crystallises in a f.c.c. lattice, the length of the unit cell is `3.63 Å`. The radius of Cu-atom is:

A

`0.6Å`

B

`2.9Å`

C

`1.28Å`

D

`5.7Å`

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The correct Answer is:

C

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