Question:
What is the coordination number of the atoms in a cubic close-packed (CCP) structure?
What is the coordination number of the atoms in a cubic close-packed (CCP) structure?
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The coordination number of 12 is typical of close-packed structures, such as face-centered cubic (FCC) and hexagonal close-packed (HCP) arrangements.
Updated On: Apr 12, 2025
- 4
- 6
- 8
- 12
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The Correct Option is D
Solution and Explanation
In a cubic close-packed (CCP) structure, the atoms are arranged in such a way that each atom is surrounded by 12 neighboring atoms. This arrangement is highly efficient in packing, as it achieves the highest possible packing efficiency. The coordination number represents the number of nearest neighbors surrounding an atom in a given structure.
Thus, the coordination number for a cubic close-packed (CCP) structure is 12.
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