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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

`sqrt2a`

B

`a/sqrt2`

C

2a

D

`2sqrt2 a `

Text Solution

Verified by Experts

The correct Answer is:
C
For the fcc structure, nearture, nearest neighbour distance
` (d) = a/sqrt2`
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