Octahedral void at edge center in ccp arrangement is equally distributed amongst

Options

A. 8 unit cells
B. 6 unit cells
C. 4 unit cells
D. 2 unit cells

Answer

To solve the question regarding the distribution of the octahedral void at the edge center in a CCP (cubic close-packed) arrangement, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Unit Cell**:
- A cubic unit cell is a three-dimensional structure with equal edge lengths and right angles. In a CCP arrangement, atoms are located at the corners and face centers of the cube.

2. **Identifying the Edge Center**:
- The edge center refers to the midpoint of an edge of the cube. In a cube, there are 12 edges.

3. **Visualizing Adjacent Unit Cells**:
- When considering the edge center, it is important to visualize that this point is not isolated. Instead, it is shared between multiple unit cells.

4. **Counting the Sharing Unit Cells**:
- The edge center is located at the intersection of four different unit cells. Specifically, each edge of the cube is shared by two unit cells on either side of the edge, resulting in a total of four unit cells sharing the edge center.

5. **Conclusion**:
- Therefore, the octahedral void at the edge center in a CCP arrangement is equally distributed amongst **4 unit cells**.

### Final Answer:
The octahedral void at the edge center in a CCP arrangement is equally distributed amongst **4 unit cells**.

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