What is the co-ordination number of hcp crystal lattice?
What is the co-ordination number of hcp crystal lattice?
- 8
- 12
- 6
- 6
The Correct Option is B
Solution and Explanation
The coordination number of a crystal lattice refers to the number of nearest neighboring atoms or ions surrounding a central atom or ion.
In a hexagonal close-packed (hcp) crystal lattice, the coordination number is 12. Each atom in the hcp lattice is in contact with 12 nearest neighboring atoms. This is achieved through a hexagonal arrangement of layers, with each layer having six atoms and three layers stacked on top of each other.
Therefore, the correct option is (B) 12.
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