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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

5.72 Å

B

0.93 Å

C

1.86 Å

D

3.22 Å

Text Solution

Verified by Experts

The correct Answer is:
D
For BCC, ` r = sqrt3/4 a = = 1.732/4 xx 4.29 Å = 1.86 Å`
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