Chapter 3-3 Metals

Physical Properties of Metals Malleable can be pounded or rolled into shape. Ductile can be pulled out into a long wire.

electrons move freely, transmits heat or electricity. Conductor electrons move freely, transmits heat or electricity. magnetic metals that are attracted to magnets and can be made into magnets. -only iron, cobalt and nickel are naturally magnetic

Chemical Properties of Metals Metals show wide range of chemical properties From very reactive (Groups 1 and 2) Unreactive (gold and chromium) corrosion gradual wearing away of a metal element caused by chemical reaction.

Alloys alloy substance made of two or more elements, at least one of which is a metal, that has the properties of metal.

Alkali Metals Group 1-from lithium to francium Most reactive metals Never found uncombined (always found as compounds) Have only one valence electron Soft, shiny http://www.teachertube.com/viewVideo.php?video_id=41344

Alkaline Earth Metals Group 2- beryllium to radium Not as reactive as group 1 Never found uncombined in nature Hard, bright white, good conductors of electricity Most common-magnesium and calcium

Transition Metals Groups 3-12 Metals in this group are very similar to each other Include familiar metals- iron, copper, silver, gold All are good conductors of electricity stable, react slowly or not at all with air/water

Metals in Mixed Groups Groups 13-16 Not as reactive as left side of periodic table Most familiar-aluminum, tin, lead