Why does Frenkel defect not change the density of AgCl crystals ?

Explanation

To understand why the Frenkel defect does not change the density of AgCl crystals, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Definition of Frenkel Defect**:
- The Frenkel defect is a type of point defect in a crystal lattice where an ion (usually a cation) is displaced from its original lattice position to an interstitial site (a space between the regular lattice points).

2. **Nature of the Defect**:
...