Chemistry AS EL CI 3.2

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  • Created by: A.B.
  • Created on: 23-10-13 16:08
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  • EL Shapes of Molecules CI 3.2
    • Depends on number of groups of electrons
      • A group of electrons could be...
        • Single bond
        • Double bond
        • Triple bond
        • Lone Pair
      • Groups of electrons will arrange themselves to be as far apart in space as possible
    • Groups of electrons repel each other
      • Depends on number of groups of electrons
        • A group of electrons could be...
          • Single bond
          • Double bond
          • Triple bond
          • Lone Pair
        • Groups of electrons will arrange themselves to be as far apart in space as possible
    • 109
      • Tetrahedral
        • 4 bonding pairs
          • e.g. CH    NH
      • Pyramidal
        • 3 bonding pairs, 1 lone pair
          • e.g, NH         H O
      • Bent
        • 2 bonding pairs, 2 lone pairs
          • e.g. H  O
    • 120
      • Planar Triangular
        • 3 bonding pairs
          • BF
        • 2 bonding pairs, 1 double bond
          • C  H
          • CH  O
    • 180
      • 2 bonding pairs
        • BeCl
        • C  H
        • CO
    • 90  and 120
      • Trigonal biplanar
      • 5 bonding pairs
    • 90
      • Octahedral
      • 6 bonding pairs

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