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Metals, Nonmetals, and Metalloids

Metals, Nonmetals, and Metalloids. October 22, 2013 An element is classified as one of these due to the properties it has. Metals (Left side and bottom of table). Are shiny (have luster) Are GOOD CONDUCTORS of energy (heat and electricity)

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Metals, Nonmetals, and Metalloids

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  1. Metals, Nonmetals, and Metalloids October 22, 2013 An element is classified as one of these due to the properties it has

  2. Metals(Left side and bottom of table) • Are shiny (have luster) • Are GOOD CONDUCTORS of energy (heat and electricity) • Are MALLABLE (able to be bent and shaped into flat sheets • Are DUCTILE (able to be pulled into wire) • Are SOLID at room temperature (except for Mercury-he’s a liquid) • Have FEWvalence electrons-it depends on the family

  3. Nonmetals (right side of table) • Are not shiny (do not have luster) • Are POOR CONDUCTORS of energy (heat and electricity) • Are not MALLABLE (able to be bent and shaped into flat sheets); but BRITTLE (easily broken) • Are not DUCTILE (able to be pulled into wire) • Are SOLID, LIQUID, OR GAS at room temperature (NONMETAL does not mean it’s a GAS) • Have LOTS of valence electrons-it depends on the family

  4. Metalloids(placed on the zig zag line) • Physical properties depend on specific element • Chemical properties depend on specific element • Number of valence electrons depends on specific element • Are SEMI-CONDUCTORS of energy (heat and electricity)

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