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Sodium metal crystallizes in a body-cent...

Sodium metal crystallizes in a body-centred cubic lattice with the cell edge `'a' = 4.29Å`". The radius of the Na atom will be 

A

`5.78Å`

B

`1Å`

C

`1,86Å`

D

`0.2Å`

Text Solution

Verified by Experts

The correct Answer is:
C
BCC : `r=(sqrt3a)/(4)=(1.732xx4.29)/(4)=1.86Å`
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