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A metallic crystal cystallizes into a la...

A metallic crystal cystallizes into a lattice containing a sequence of layers `ABABAB…`. Any packing of spheres leaves out voids in the lattice. What percentage by volume of this lattice is empty spece?

A

`72%`

B

`48%`

C

`32%`

D

`26%`

Text Solution

Verified by Experts

The correct Answer is:
D
AB AB packing is hexagonal close packing in which all atom occupy `74%` of the total space. Hence, `26%` of the space is empty or voids.
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