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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

2.857 Å

B

1.601 Å

C

2.145 Å

D

1.857 Å

Text Solution

Verified by Experts

The correct Answer is:
D

Since , sodium crystallises in bcc lattice, therefore the radius of sodium atom is
`r=sqrt3/4a`
`sqrt3/4xx4.29` Å
=1.857 Å
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SOLID STATE-EXERCISE 1
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