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A metal crystallises in a face centred c...

A metal crystallises in a face centred cubic structure. If the edge length of its unit cell is 'a' the closest approach between two atoms in metallic crystal will be

A

`2sqrt(2)a`

B

`sqrt(2)a`

C

`(a)/sqrt(2)`

D

`2a`

Text Solution

Verified by Experts

The correct Answer is:
C
For FCC, `sqrt(2)a=4R` So, `2R=(a)/sqrt(2)`
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