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Xenon crystallizes in the face-centred c...

Xenon crystallizes in the face-centred cubic lattice and the edge of the unit cell is `620` pm. What is the nearest neighbour distance and what is the redius of xenon atom?

A

438.5 pm

B

219.25 pm

C

420 pm

D

261.5 pm

Text Solution

Verified by Experts

The correct Answer is:
A
As xenon crystallises in fcc lattice , nearest neighbour
distance (d) `=a/sqrt2=(620)/(sqrt2)=620/1414 = 438.5`
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