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Exploring Chemistry: Elements and Compounds Discovery

Learn about elements categorized as metals, nonmetals, and metalloids, and their significance in the Periodic Table. Discover the properties and classifications of different elements in this fascinating exploration of chemical compositions.

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Exploring Chemistry: Elements and Compounds Discovery

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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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