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Sodium metal crystallizes in a body cent...

Sodium metal crystallizes in a body centred cubic lattice with a unit cell edge of 4.29 Å. The radius of sodium atom is approximately :

A

`sqrt(2)`a

B

`(a)/(sqrt(2))`

C

2a

D

`2sqrt(2)`a

Text Solution

Verified by Experts

`4r = sqrt(3)a " " r = (4.29 xx sqrt(3))/(4) = 1.86 `Å
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