The Periodic Table

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The Periodic Table
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Mendeleevs Periodic Table

• In the 1860s Mendeleev was working on a textbook
  to use with his chemistry students.
• He needed to organize 63 elements and their
  information.
• Idea for organization came from the card game
  solitaire.
• He created a deck of cards for the elements with
• Elements name, mass, and properties.
• Behavior in reactions with hydrogen and oxygen.
• Mendeleev arranged the elements into rows in
  order of increasing mass so that elements with
  similar properties were in the same column.

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History

• Dmitri Mendeleev predicted 6 undiscovered
  elements and their properties
• (properties video)
• Periodic Table was rearranged by Henry Moseley by
  atomic numbers in 1913

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Modern Periodic Table Organization

• Groups or Families (columns) - 18
• Periods (rows) - 7

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Organization

• Metals (left side)
• Non-metals (right side)
• Metalloids (stairstep)
• B, Si, Ge, As, Sb, Te, At, Po

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Group names

• Group 1 Alkali Metals
• Group 2 Alkaline Earth Metals

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Group names

• Group 3 -12
• Transition metals
• Group 13 - Boron family
• Group 14 Carbon family
• Group 15 Nitrogen family
• Group 16 Oxygen family

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Group names

• Group 17 Halogens
• Group 18 Noble Gases

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Other

• Lanthanide Series - top row below periodic table
• Actinide Series - bottom row below periodic table

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• Group 1 - Alkali Metals
• Group 2 - Alkaline Earth Metals
• Group 13 - Boron family
• Group 14 Carbon family
• Group 15 Nitrogen family
• Group 16 Oxygen family
• Group 17 Halogens
• Group 18 Noble (Inert) Gases

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Building your element

• Take atomic radius and divide by 23.
• Cut out 5 circles with this radius.
• Make _____ tick marks around the outside of each
  circle. Use your radius size to space them out
  evenly.
• Staple / hot glue your sides together.