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Copper metal has a face-centred cubic structure with the unit cell length equal to 0.361 nm. Picturing copper ions in contact along the face diagonal,The apparent radius of a copper ion is- (A) 0.128(B) 1.42 (C) 3.22(D) 4.22 |
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Answer» Solution : (A) For a face-centred cube, we have, RADIUS`=(sqrt(2A))/(4)=(sqrt(2)xx0.361)/(4)` nm=0.128. |
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