How to calculate coordination number of hexagonal unit cell?

1.	How to calculate coordination number of hexagonal unit cell?
Answer» Answer: In a unit cell, an atom's coordination NUMBER is the number of ATOMS it is TOUCHING. The hexagonal CLOSEST packed (hcp) has a coordination number of 12 and contains 6 atoms PER unit cell.

Answer»

Answer:

In a unit cell, an atom's coordination NUMBER is the number of ATOMS it is TOUCHING.

The hexagonal CLOSEST packed (hcp) has a coordination number of 12 and contains 6 atoms PER unit cell.

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