The lattices has the highest packing efficiency among the following is- 
1. Simple cubic
2. Body-centred cubic
3. Hexagonal close-packed lattice
4. None of the above

 

Subtopic:  Density & Packing Fraction |
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An element with molar mass 2.7 × 10-2 kg mol-1 forms a cubic unit cell with edge length 405 pm. If its density is 2.7 × 103 kg m−3, then the nature of the cubic unit cell is-

1. Face-centred cubic
2. Body-centered cubic
3. End-Centred cubic
4. None of the above
Subtopic:  Density & Packing Fraction |
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