1. Metallic Bonding
Section 6.4

2. Introduction
Delocalized: refers to valence electrons that are free to move throughout the structure
In metals, valence electrons are delocalized and can move throughout the metal (shared by all atoms)
Metals are therefore composed of cations surrounded by delocalized electrons

3. Continued Sometimes referred to as the electron- sea model
Metallic bonding is the electrostatic attraction between the metal ions and the delocalized electrons

4. Visual of the Electron Sea

5. Physical Properties of Metals
Ductile: can be drawn into a wire
Malleable: can be hammered into thin sheets
Both of these properties are attributed to the metal's ability to have layers pushed so they slide over one another without disrupting the metallic bonding
Some metals are better at this than others

6. Pretty Pictures Displaying Some Properties of Metals

7. Thermal and Electrical Conductivity
When a voltage is applied, the delocalized electrons are free to move
This also aids in conducting heat as the movement of the electrons carries kinetic energy