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Types of Solids

Types of Solids. Crystalline Solids. Crystalline solids form an orderly, regular, repeating arrangement of particles (detailed on next 4 slides) 4 Types: Covalent Solids Ionic Solids Network Solids Metallic Solids

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Types of Solids

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  1. Types of Solids

  2. Crystalline Solids • Crystalline solids form an orderly, regular, repeating arrangement of particles (detailed on next 4 slides) • 4 Types: • Covalent Solids • Ionic Solids • Network Solids • Metallic Solids • Amorphous solids has randomly arranged particles; (we will not discuss these in detail) • Examples: rubber, glass, plastics

  3. Covalent Solids • Also known as molecular solids • Polar Covalent: molecules have polarity • Example: H2O (ice) • Nonpolar Covalent: molecules are nonpolar • Example: I2 • Use Lewis/VSEPR/bonding knowledge to determine molecule shape and polarity

  4. Ionic Solids • Also known as salts • Form crystal lattices in a regular, repeating pattern of ions attracted to each other • Example: NaCl, KNO3

  5. Network Solids • Giant molecules with REALLY strong covalent bonds holding them together • Example: diamond or graphite (C), sand (SiO2)

  6. Metallic Solids • Pure metals in their solid form • Sea of electrons: mobile “sea” of electrons allows charge flow, luster, ductility, malleability, etc • Example: Ni, Au

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