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Lithium forms body centred cubic structu...

Lithium forms body centred cubic structure. The length of the side of its unit cell is 351 pm. Atomic radius of the lithium will be

A

300.5 pm

B

240.8 pm

C

151.8 pm

D

75.5 pm

Text Solution

Verified by Experts

The correct Answer is:
C
for bcc type of unit cell
`sqrt(3)=4r `
`r=(sqrt(3))/(4)a`
`=(1.732xx351)/(4)`
`=151.98`
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