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a metal crystallizes with a face-centere...

a metal crystallizes with a face-centered cubic lattice.The edge of the unit cell is `408` pm. The diameter of the metal atom is :

A

144 pm

B

204 pm

C

288 pm

D

408 pm

Text Solution

Verified by Experts

The correct Answer is:
C
For `FC C " " r=(a)/(2sqrt(2))`
So diameter `=(a)/(sqrt(2))=(408)/(1.414)=288.5 pm`
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