What is the percentage occupied and percentage void in ccp structure?

Explanation

To find the percentage occupied and percentage void in a cubic close packing (CCP) structure, also known as face-centered cubic (FCC) structure, we can follow these steps:

### Step 1: Understand the Structure of CCP/FCC
In a CCP or FCC structure, atoms are located at the corners of the cube and at the centers of each face. Each corner atom is shared among eight adjacent unit cells, and each face-centered atom is shared between two unit cells.

### Step 2: Calculate the Number of Atoms in the Unit Cell
- **Corner atoms:** There are 8 corners, and each corner contributes \( \frac{1}{8} \) of an atom to the unit cell.
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