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Sodium metal crystallises in body centre...

Sodium metal crystallises in body centred cubic lattic with cell edge `4.29 Å` .What is the radius of sodium atom ?

A

`2.86 Å`

B

`6.81 Å`

C

`1.68 Å`

D

`1.86 Å`

Text Solution

Verified by Experts

For BCC structure
`4 pi =sqrt(3a)`
`r= (sqrt(3)xx4.29)/(4) = 1.86 Å`
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