Bonding in MetalsBonding in Metals

MetalsMetals Made up of closely packed cationsMade up of closely packed cations Not Not neutral atomsneutral atoms Valence eValence e-- can move can move

Recall:Recall: What type of ionization energy What type of ionization energy do metals have?do metals have?

Low = tend to lose e-

Metallic BondingMetallic Bonding Free floating valence eFree floating valence e-- are attracted are attracted

to (+) metal ionsto (+) metal ions

Free floating valence eFree floating valence e-- explain explain metallic properties:metallic properties:•Good conductorsGood conductors•Malleable & DuctileMalleable & Ductile•LusterLuster

Crystalline StructureCrystalline Structure Metal atoms are arranged in very Metal atoms are arranged in very

compact & orderly patternscompact & orderly patterns

AlloysAlloys Mixtures that contain a Mixtures that contain a metalmetal & one & one

or more ‘other’ elementsor more ‘other’ elements Superior propertiesSuperior properties Examples:Examples:

Sterling Silver –Sterling Silver –Bronze –Bronze –Steel – Steel – Titanium - Titanium -

Silver & CopperCopper & Tin

Iron, Carbon, Chromium, NickelAluminum & Vanadium