Presentation on theme: "METALS What are Metals? Metals are elements which have the following Physical Properties: Shininess Malleability - Can be pounded into shapes Hardness."— Presentation transcript:
1 METALSWhat are Metals?Metals are elements which have the following Physical Properties:ShininessMalleability - Can be pounded into shapesHardnessDuctility - Can be pulled out into a wire ( ex coat hanger)Conductivity - transmit heat & electricity easily
2 - 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.
3 NONMETALS What are Nonmetals? - In general the Physical Properties of nonmetals are opposite to those of metalsNonmetals have the following Physical Properties:Most nonmetals are gases ( O, He, H, N)Most nonmetals are dull ( not shiny)Not malleable (brittle) or ductilePoor conductors of heat & electricity
4 Nonmetals also have chemical properties - Most nonmetals (except Noble Gases: He,Ne, Ar,Kr,Xe,Rn) readily form compounds with other elements.