Organize my grocery list so that I can be more efficent: by gN4R51

VIEWS: 5 PAGES: 19

									Organize my grocery list so that
    I can be more efficient:
•   Peanut butter   •   Bread
•   Milk            •   Frozen waffles
•   Ground beef     •   Cheese
•   Cucumber        •   Cheerios
•   Frozen corn     •   Sliced ham
•   Fish sticks     •   Ice cream
•   strawberries
What are some of the ways you
 organized the grocery list?
•   Alphabetical
•   Aisle
•   Frozen foods
•   Food groups
•   Animal/plant products
•   Processed/natural foods
   The periodic table has a lot of
 information organized in different
             patterns:
• Periods – horizontal rows
            - elements have the same
      number of electron shells
• Groups – vertical columns
            - elements in the same group
            have similar chemical properties
Staircase – separates metals and non-
            metals
         Trend 1: Periods
Periods – horizontal rows
 - elements have the same number of
 electron shells
 - Periods go from 1 to 7
Periods
  Trend 2: Groups or Families
• Groups – vertical columns

- Elements in the same group have similar
  chemical properties

- Groups go from 1 to 18
Groups
              Families
• Families: Some groups are combined as
  they all act similarly.
              Hydrogen
• Family of one!
• Sometimes acts like a metal
• Sometimes acts like a non-metal
            Alkali Metals
• Group 1
• Most reactive metals
• Always combined with other substances in
  nature
• Ex: Li, Na, K
      Alkaline Earth Metals
• Group 2
• Very reactive metals
• Ex: Be, Mg, Ca
          Transition Metals
•   Groups 3-12
•   Most common metals
•   Shiny
•   High melting points
•   Ex: Au, Ag, Cu, Co
           Groups 13 to 16
• You are not responsible for the names of
  these families.
              Halogens
• Group 17
• Most reactive non-metals
• Ex: F, Cl, Br
              Noble gases
•   Group 18
•   Very stable
•   Not reactive under normal conditions
•   Ex: He, Ne, Ar
            Trend 3:
  Metals, Non-metals, Metalloids
• Staircase – separates metals and non-
               metals
         Properties of Metals, Non-
          metals and Metalloids:
              Location       State            Appearance   Conductivity
                              (at room                     (heat and
                             temperature)                  electricity)
Metals        Left side of   Solids (except   Shiny        Good
              staircase      Hg – liquid)
Non- metals   Right side     Some gases,      Not very     Poor
              of staircase   some solids      shiny
                             (except Br –
                             liquid)
Metalloids    Directly       Solids           Either       May conduct
              surrounding                     shiny or     electricity,
                                                           poor for heat
              staircase                       dull
Use your book or this slide to colour your own periodic table
for reference:


       Metal = green
       Non-metals = yellow
       Metalloids = blue

								
To top