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Sodium (Na=23) crystallizes in bc c arra...

Sodium `(Na=23)` crystallizes in `bc c` arrangement with the interfacial separation between the atoms at the edge `53.6 pm`. The density of sodium crystal is `:`

A

2.07 g/cc

B

2.46 g/cc

C

1.19 g/cc

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
`a-2r=53.6pm, 4r=sqrt(3)a`
`d=(2xx23)/(N_(0)xx4^(3)xx10^(-24))=1.19g//u`
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