Chemical Bonding Metallic Bonding.

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Presentation transcript:

Chemical Bonding Metallic Bonding

Metallic Bonding Objectives: Describe the electron-sea model of metallic bonding. Describe the characteristics of metallic substances.

Metallic Bonding Unique properties of metals are due to highly mobile (delocalized) valence electrons

Metallic Bonds Metals have vacant orbitals in their highest energy levels which overlap with neighboring atoms. Valence electrons are delocalized; move freely metal atoms’ overlapping orbitals. Na crystal structure

Metallic Bonding Metallic Bonding – bonding that occurs between metal cations and the surrounding “sea of electrons metallic bonding and metallic properties - YouTube

Properties of Metals High electrical conductivity High thermal conductivity Luster Malleability Ductility High melting and boiling points

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