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Sodium has body centred packing. Distanc...

Sodium has body centred packing. Distance between two nearest atoms is `3.7 Å`. The lattice parameter is

A

`6.8 Å`

B

`4.3 Å`

C

`3.0 Å`

D

`8.6 Å`

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The correct Answer is:
B
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