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If atomic redius of barium is 2.176Å and...

If atomic redius of barium is `2.176Å` and it crystallises in b.c.c. unit cell, the edge length of unit cell is

A

`3.512Å`

B

`2.483Å`

C

`5.025Å`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Cube diagonal
`4r=sqrt3a`
`a=4/sqrt3r=(4times2.176)/sqrt3Å=5.025Å`
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