Three atoms P, Q & R crystallize in a cubic solid lattice having P atom at corners, Q atom at body centre and R atom at the face centres. Find formula of the compound.

Explanation

To find the formula of the compound formed by the atoms P, Q, and R in a cubic solid lattice, we will analyze the contribution of each type of atom based on their positions in the unit cell.

### Step-by-Step Solution:

1. **Identify the Positions of Atoms:**
- P atoms are located at the corners of the cube.
- Q atom is located at the body center of the cube.
- R atoms are located at the face centers of the cube.
...