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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 `4.29Å`. The radius of sodium atom is approximately `:`

A

`1.86Å`

B

`3.22Å`

C

`5.72Å`

D

`0.93Å`

Text Solution

Verified by Experts

The correct Answer is:
A
For body centred cubic lattice,
Radius, `r = ( sqrt( 3))/( 4) a `
`a = 4.29 Å`
`:. r = ( 1.732)/( 4) xx 4.29 = 1.86 Å`
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Knowledge Check

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