1 METALS & NONMETALS Where are the metals and nonmetals on the PT? What are the properties of metals and nonmetals? What are metalloids?

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3 METALS= LEFT SIDE OF PT NONMETALS= RIGHT SIDE OF PT (except Hydrogen) METALLOIDS= ALONG THE STAIRCASE (except Aluminum)

4 PROPERTIES OF METALS Physical Properties: Solid at room temperature - exception: Hg Solid at room temperature - exception: Hg Silvery-gray - exception: Au and Cu Silvery-gray - exception: Au and Cu Good Conductors Good Conductors Metallic luster (shine) Metallic luster (shine) Malleable Malleable Ductile Ductile Chemical Properties: Lose Electrons (makes positive ion) Lose Electrons (makes positive ion) Corrode easily Corrode easily

5 PROPERTIES OF NONMETALS Physical Properties: Can be gas, solid, or liquid at room temperature Can be gas, solid, or liquid at room temperature Come in all colors Come in all colors No metallic luster No metallic luster Poor conductors Poor conductors Brittle Brittle Odors or pungent Odors or pungent Chemical Properties: Tend to gain electrons (makes negative ion) Tend to gain electrons (makes negative ion)

6 METALLOIDS Properties and characteristics of both metals and nonmetals Properties and characteristics of both metals and nonmetals Along the staircase/steps of the periodic table Along the staircase/steps of the periodic table EXCEPT: Al, At EXCEPT: Al, At

7 PRACTICE! METAL, NONMETAL, METALLOID Hydrogen Hydrogen Magnesium Magnesium Calcium Calcium Arsenic Arsenic Carbon Carbon Helium Helium Lead Lead Aluminum Aluminum NONMETAL METAL METALLOID