Section 14.3 Properties of Solids 1.To learn about the types of crystalline solids 2.To understand the interparticle forces in crystalline solids 3.To.

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Presentation transcript:

Section 14.3 Properties of Solids 1.To learn about the types of crystalline solids 2.To understand the interparticle forces in crystalline solids 3.To learn how the bonding in metals determines metallic properties Objectives

Section 14.3 Properties of Solids A. The Solid State: Types of Solids Crystalline solids

Section 14.3 Properties of Solids A. The Solid State: Types of Solids

Section 14.3 Properties of Solids A. The Solid State: Types of Solids

Section 14.3 Properties of Solids B. Bonding in Solids

Section 14.3 Properties of Solids B. Bonding in Solids Stable substances with high melting points Held together by strong forces between ions Ionic Solids

Section 14.3 Properties of Solids B. Bonding in Solids Fundamental particle is a molecule Melt at relatively low temperatures Held together by weak intermolecular forces Molecular Solids

Section 14.3 Properties of Solids B. Bonding in Solids Fundamental particle is the atom Properties vary greatly –Group 8 - low melting points –Diamond - very high melting point Atomic Solids

Section 14.3 Properties of Solids 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

Section 14.3 Properties of Solids B. Bonding in Solids Metals form alloys of two types Bonding in Metals –Substitutional – different atoms are substituted for the host metal atoms

Section 14.3 Properties of Solids 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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