JEE Advanced
- Exam
- JEE Advanced
- Subject
- Chemistry
- Chapter
- Solid State
JEE Advanced · Chemistry · Solid State
In CCP, there are 8 tetrahedral sites and all are present...
In CCP, there are 8 tetrahedral sites and all are present completely inside the unit cell. There are 13 octahedral sites out of which 1 is at the body centre and 12 are at edge centres. Like CCP, another packing is HCP, in which the number of tetrahedral sites that are completely inside one unit cell is x . Mark the value of .
[Assume those sites are completely inside the cell that are not shared between unit cells]
Correct answer
64
Step-by-step solution
Hint : H.C.P. contain 20 T.H site
Solution :
In H.C.P., 8 T.V are inside the unit cell while 12 are at vertical edges (2 on each vertical edge)
One edge in H.C.P. contributes .