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Gold crystallizes in a face centred unit...

Gold crystallizes in a face centred unit cell. Its edge length is 0.410nm. The radius of gold atom is

A

0.205 nm

B

0.290 nm

C

0.145 nm

D

0.578 nm

Text Solution

Verified by Experts

The correct Answer is:
C
For fcc unit cell, `r = (a)/( 2 sqrt(2))`
` :. r = ( 0.410)/( 2 xx 1.414) = 0.145 `nm
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