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Periodic Table Notes

Periodic Table Notes. 1/14/14. Red stair step line separates metals from nonmetals Groups/families – vertical ↕ Have similar physical and chemical properties Periods – horizontal ↔ Periods do not have similar properties. Periodic Table Organization. Alkali metals – group 1A

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Periodic Table Notes

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  1. Periodic Table Notes 1/14/14

  2. Red stair step line separates metals from nonmetals • Groups/families – vertical ↕ • Have similar physical and chemical properties • Periods – horizontal ↔ • Periods do not have similar properties Periodic Table Organization

  3. Alkali metals – group 1A • 1 electron in outermost shell • Reacts violently with water • Alkaline Earth metals – group 2A • Produces bases in water • Transition Metals – Groups 1B to 8B • Inner transition metals – also called Rare Earth Elements Periodic Table Organization

  4. Halogens – Group 7A • 7 electrons in outermost shell • Very reactive nonmetals • Noble Gases – Group 8A • 8 electrons in outermost shell • Very stable, does not form compounds Periodic Table Organization

  5. Conduct heat • Conduct electricity • Ductile • Malleable • Can be hard or soft • 3 or less valence electrons • Left side of red line Sodium Metals

  6. Has properties of both metals and non metals • Touch the red line Boron Metalloids

  7. Does not conduct heat well • Does not conduct electricity well • Solids are brittle • Most are gases at room temperature • 5 or more valence electrons • Right side of red line Nonmetals Nitrogen

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