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A metal crystallises in face centred cub...

A metal crystallises in face centred cubic structure with metallic radius `sqrt(2)A^(@)`. The volume of the unit cell (in `m^(3)`) is

A

`4xx10^(-9)`

B

`6.4xx10^(-30)`

C

`4xx10^(-10)`

D

`6.4xx10^(-29)`

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