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Nature of Solids

Nature of Solids. Crystalline Solids. Solid in which the representative particles exist in a highly ordered, repeating pattern. Most solids are crystalline solids Has a sharp melting point where it becomes a free flowing liquid Ex. (Salt, Sugar, Snow)

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Nature of Solids

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  1. Nature of Solids

  2. Crystalline Solids • Solid in which the representative particles exist in a highly ordered, repeating pattern. • Most solids are crystalline solids • Has a sharp melting point where it becomes a free flowing liquid • Ex. (Salt, Sugar, Snow) • Unit Cells- Representative group that is repeated throughout a crystal structure

  3. Types of Unit Cells

  4. Amorphous Solids • Solid in which the arrangement of representative particles lacks a regular, repeating pattern. • Often referred to as supercooled liquids • When heated become softer and softer over a wide range of temperatures before it melts • Can be looked at as though the liquid was cooled to such low temperatures that it has a high viscosity and the viscosity is high enough to prevent liquid flow. • Ex. (Glass, Rubber, Plastics)

  5. Types of Crystalline Solids

  6. Metallic Solids Malleable- Capable of being stretched or bent into different shapes

  7. Molecular Solids

  8. Ionic Solids

  9. Covalent-Network Solids

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