Bonding in Metals.

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Presentation transcript:

Bonding in Metals

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

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

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

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

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