Which of the following lattices has the highest packing efficiency?

CBSE Class 12 CBSE Class 12 Chemistry
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1

Which of the following lattices has the highest packing efficiency?
(i) Simple cubic
(ii) Body-centred cubic
(iii) Hexagonal close-packed lattice

2

Hexagonal close-packed lattice has the highest packing efficiency, i. e. 74%.