How is a crystalline solid different from an amorphous solid?

Explanation

To differentiate between crystalline solids and amorphous solids, we can outline the following key differences:

### Step-by-Step Solution:

1. **Arrangement of Atoms:**
- **Crystalline Solids:** The atoms are arranged in a regular, repeating three-dimensional pattern. This orderly arrangement leads to a well-defined structure.
- **Amorphous Solids:** The atoms do not have a long-range order or a regular arrangement. They are arranged more randomly, similar to the arrangement in liquids.

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