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The coordination number of a metal cryst...

The coordination number of a metal crystallizing in a hexagonal close-packed structure is

A

12

B

4

C

8

D

6

Text Solution

Verified by Experts

The correct Answer is:
A
In case hcp, the atoms are located at the corners and centre of two hexagons placed parallel to each other, three more atoms are placed midway between these two planes. In such an arrangements each atom is surrounded by 12 others and so it has a coordination number 12.
Hence (A) is correct option.
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