Copper crystallizes in a face-centred cublic lattice with a unit cell – InterviewSolution

1.	Copper crystallizes in a face-centred cublic lattice with a unit cell length of 361pm. What is the radius of copper atom in pm ?
Answer» 157 181 108 128 Solution :For FCC STRUCTURE, `r = ( a)/( 2 sqrt( 2)) = ( 361)/( 2 sqrt( 2)) = ( 361)/( 2 xx 1.414)` `= 127 .6 = 128` pm

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