An amorphous solid is a solid in which the particles (atoms, ions, or molecules) are not arranged in a regular, long-range order. They lack a well-defined geometric pattern, unlike crystalline solids.
Key features of amorphous solids:
- Irregular arrangement – No long-range repeating structure.
- No definite shape – They can be molded or shaped more easily than crystalline solids.
- No sharp melting point – They soften over a range of temperatures instead of melting at a fixed point.
- Isotropy – Physical properties are generally the same in all directions.
- Examples – Glass, Rubber, Plastic, Wax, Gel.
Importance:
- Used in windows and containers (glass).
- Flexible materials for rubber products, plastics, and adhesives.