2. Physical properties: Shininess Malleable– can be hammered or rolled out into flat sheets or other shapes Ductile – can be pulled out, or drawn, into a long wire Conductivity – ability of an object to transfer heat or electricity Chemical properties: Reactivity – the ease and speed with which an element combines, or reacts, with other elements Corrosion Rusting Tarnishing

3. METAL Place on Periodic Table Physical Properties ConductivityReactivityMalleabilityExamplesAdditional Information Alkali Group 1 *shiny *soft Not good conductors *highly reactive * loses 1 electron when combining not malleable Na (sodium) K (potassium) *NEVER found uncombined in nature! Group 1 = 1 Valence electron!

4. METAL Place on Periodic Table Physical Properties ConductivityReactivityMalleabilityExamplesAdditional Information Alkaline Earth metals Group 2 *fairly hard *grey- white in color Good conductors *highly reactive *loses 2 electrons when combining not malleable Mg (magnesium) Ca (calcium) *NEVER found un- combined in nature! Group 2 = 2 Valence electrons!

5. METAL Place on Periodic Table Physical Properties ConductivityReactivityMalleabilityExamplesAdditional Information Transi- tion Groups 3 – 12 (middle part of the table) *hard *shiny Very good conductors Reactivity DECREASES as you move from LEFT to RIGHT. malleable & ductile Iron Copper Nickel Silver Gold * largest group *MERCURY is only liquid metal

6. METAL Place on Periodic Table Physical Properties Con- ductivity ReactivityMalleabilityExamplesAdditional Informa- tion Mixed Only Some metals in groups 13-15 (or 3 – 5) *shiny *light- weight Slightly con- ductive NOT very reactive malleableAluminum Tin lead A thin coating of tin can protect other metals from corrosion These are the GREEN boxes

7. METAL Place on Periodic Table Physical Properties ConductivityReactivityMalleabilityExampleAdditional Information Lan- thanides 1 st row below main part of periodic table *soft *shiny HIGH conductivity Usually found combined with other lanthanides in nature VERY malleable Nd is used in head- phone speakers *found mixed with more common elements called ALLOYS *DIFFICULT to separate ALLOY – is a mixture of a metal with at least one other element

8. METAL Place on Periodic Table Physical Properties Conduct- ivity ReactivityMalleabilityExamplesAdditional Information Actinides Last row under lanthanides Only last a very short time *all these elements are very unstable thorium and uranium are the only two that occur naturally *most are unstable because they are man-made *uranium is used to produce energy in nuclear power plants