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The number of atoms in 100 g of an fcc c...

The number of atoms in `100 g` of an fcc crystal with density `= 10.0g cm^(-3)` and cell edge equal to `200 pm` is equal to

A

`5 xx 10^(24)`

B

`5 xx 10^(25)`

C

`6 xx 10^(23)`

D

`2 x 10^(25)`

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The correct Answer is:
A
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