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| 1. |
What are tetrahedral and octahedral voids in a close-packed structure of particles? How many voids are there in a ccp structure of 'N' atoms? Why is the number of octahedral voids in an hcp or a ccp arrangement of particles equal to the number of packed particles? |
| Answer» Solution :In a CCP structures of N ATOMS, there are 2N number of tetrahedral VOIDS and N number of octahedral voids. Thus, TOTAL number of voids present in that ccp structure is (2N + N) = 3N. | |