1. Chapter 3-3 Metals

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

3. 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

4. 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.

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

6. 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

7. 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

8. 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

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