METALS What are Metals? Metals are elements which have the following Physical Properties: Shininess Malleability - Can be pounded into shapes Hardness.

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Presentation transcript:

METALS What are Metals? Metals are elements which have the following Physical Properties: Shininess Malleability - Can be pounded into shapes Hardness Ductility - Can be pulled out into a wire ( ex coat hanger) Conductivity - transmit heat & electricity easily

- Metals also have Chemical Properties: Some metals are very reactive (they combine easily with other elements) Group 1 metals are the most reactive and if they are exposed to air or water can explode. Other metals such as gold are unreactive.

NONMETALS What are Nonmetals? - In general the Physical Properties of nonmetals are opposite to those of metals Nonmetals have the following Physical Properties: Most nonmetals are gases ( O, He, H, N) Most nonmetals are dull ( not shiny) Not malleable (brittle) or ductile Poor conductors of heat & electricity

Nonmetals also have chemical properties - Most nonmetals (except Noble Gases: He,Ne, Ar,Kr,Xe,Rn) readily form compounds with other elements.