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Periodic Table Notes

An element is made up of only one pure substance, and a compound is composed of two or more elements that are chemically combined. Periodic Table Notes. Gold. http://www.worldofrockhounds.com/huge-gold-nugget-sm.JPG. Water. http://www.nbmg.unr.edu/slides/water/5.htm.

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Periodic Table Notes

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  1. An element is made up of only one pure substance, and a compound is composed of two or more elements that are chemically combined. Periodic Table Notes Gold http://www.worldofrockhounds.com/huge-gold-nugget-sm.JPG Water http://www.nbmg.unr.edu/slides/water/5.htm Unit 1

  2. Elements are identified by 3 main categories Metals Nonmetals Metalloids Periodic Table Unit 1

  3. Elements Metals Metals are elements that are usually shiny and good conductors of electricity and heat. Unit 1

  4. Elements Nonmetals • Usually dull and poor conductors of heat and electric current. Unit 1

  5. Elements • Nonmetals are located to the right of the “zig zag line” on the Periodic Table. Unit 1

  6. Elements Metalloids Share properties of both metals and nonmetals. • Can be shiny or dull. Unit 1

  7. Elements • Metalloids touch the “zig zag line” on the Periodic Table. • Examples: Silicon (Si) Arsenic (As). Unit 1

  8. Introduction to the Periodic Table Dimitri Mendeleev discovered a pattern to the elements in the periodic table in 1869. www.astrosurf.org/lombry/ quantique-histoire.htm Unit 1

  9. Introduction to the Periodic Table • Groups – Vertical columns on the periodic table. Also called families. All of the elements in a group have similar properties. • Periods – Horizontal rows of elements on the periodic table. P Unit 1

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