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To learn about the types of crystalline solids

Objectives. To learn about the types of crystalline solids To understand the interparticle forces in crystalline solids To learn how the bonding in metals determines metallic properties. A. The Solid State: Types of Solids. Crystalline solids. A. The Solid State: Types of Solids.

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To learn about the types of crystalline solids

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  1. Objectives • To learn about the types of crystalline solids • To understand the interparticle forces in crystalline solids • To learn how the bonding in metals determines metallic properties

  2. A. The Solid State: Types of Solids • Crystalline solids

  3. A. The Solid State: Types of Solids

  4. A. The Solid State: Types of Solids

  5. B. Bonding in Solids

  6. B. Bonding in Solids • Stable substances with high melting points • Held together by strong forces between ions • Ionic Solids

  7. B. Bonding in Solids • Fundamental particle is a molecule • Melt at relatively low temperatures • Held together by weak intermolecular forces • Molecular Solids

  8. B. Bonding in Solids • Fundamental particle is the atom • Properties vary greatly • Group 8 - low melting points • Diamond - very high melting point • Atomic Solids

  9. B. Bonding in Solids • Metals are held together by nondirectional covalent bonds (called the electron sea model) among the closely packed atoms • Bonding in Metals

  10. B. Bonding in Solids • Metals form alloys of two types • Bonding in Metals • Substitutional – different atoms are substituted for the host metal atoms

  11. B. Bonding in Solids • Metals form alloys of two types • Bonding in Metals • Interstitial – small atoms are introduced into the “holes” in the metallic structure

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