1. Bonding in Metals

2. Metals Made up of closely packed cations
Valence electrons  “sea of electrons”
Can drift freely from one part of the metal to another

3. Metallic bonds
Attraction between the free floating valence electrons and the positively charged metal ions
Attraction holds the metal together

4. Physical properties of metal
Due to the “sea of electrons”
Good conductors of electricity
Ductile
Malleable

5. Crystalline Structure of metals
Atoms are arranged in a compact and orderly structure.

6. Alloys Mixtures of two or more elements (one is always a metal)
Example: Brass  mixture of copper and zinc
Properties are better than the individual element
Most important alloy today:
Steel