periodic table

  • Created by: Bobbycar
  • Created on: 03-10-19 12:43
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  • GCSE AQA combined science- the Periodic Table
    • history of the Periodic Table
      • Newlands
        • he used a 'law of octaves'- elements were in groups of 8
          • but elements ended up having metals and non metals together
      • mendeleev
        • he left gaps.
          • future elements fit in those gaps.
    • the groups
      • group 1
        • elements:  Lithium, Sodium, Potassium, Rubidium, Ceasium, Francium
        • very reactive
          • as you go down:
            • reactivity increases, melting and boiling point get lower, atomic mass increases
      • elements:
        • Flourine, Chlorine, Bromine, Iodine, Astatine
      • group 7
        • they become LESS reactive, higher melting and boiling points, higher atomic masses
    • modern periodic table
      • Untitled


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