A compound is made up of two elements A & B, having cubic structure. Atoms A occupy corners as well as face centre whereas atoms B occupy edge centre as well as body centre. What is formula of the compound ?

Explanation

To determine the formula of the compound made up of elements A and B with the given cubic structure, we can follow these steps:

### Step 1: Identify the positions of atoms A
Atoms A occupy the corners and the face centers of the cubic structure.

- **Corners**: In a cube, there are 8 corners. Each corner atom contributes \( \frac{1}{8} \) of an atom to the unit cell. Therefore, the contribution from the corner atoms is:
\[
\text{Contribution from corners} = 8 \times \frac{1}{8} = 1 \text{ atom of A}
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