Chemical bonding

  • Created by: Amee204
  • Created on: 23-05-19 17:12
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  • Chemical Bonding
    • Chemical bonds
      • Ionic Bonding
        • Attraction between two opposite ions
          • Metal and non-metals
      • Merallic bonds
        • Positive charged ions and delocalised electrons
          • Metal and alloys
        • Delocalised electrons
          • Free to move
          • Metals have a small amount of electron in shell
      • Covalent Bonds
        • Share electrons
          • Between non-metals
            • small molecules
              • water
            • large molecules
              • polymers
                • silk
                • Polyester
            • Giant covalent structures
              • Diamond
        • Representing
          • Single
            • Water
              • Oxygen has 6 electrons
                • Needs 2 electrons
                • Forms bond with 2 oxygen atoms
            • Chlorine
              • both start with 7 electrons
                • Share a pair of electrons
                  • Gain a full outer shell
            • Between 2 non-metals
          • Method
            • Dot-and-cross without shells
              • with shells
            • Ball-and-stick
            • Lines
          • Double + triple bonds
            • Usually stronger
            • Double
              • 2 Oxygen
                • Have 2 pairs of electrons
              • 2 shared electrons between 2 non-metals
            • Triple
              • 3 shared electrons between 2 non-metals
      • Ionic bonds
        • ions
          • Anions
            • Negative ions
            • Gains electrons
              • group 7
          • Cations
            • Positive ions
            • Loses electrons
              • Group 1 + 2
          • charged atom
        • Groups
          • 1
            • Metals
              • lose 1 electron
                • +1
                • Sodium
              • Lose 2 electrons
                • +2
                • Magnesium
          • 2
            • Metals
              • lose 1 electron
                • +1
                • Sodium
              • Lose 2 electrons
                • +2
                • Magnesium
          • 6/7
            • non-metals
              • Gain electrons
                • -3/-2
                • Fluorine
          • 0
            • Full outer shell
              • non-reactive
              • Argon
      • Ionic compounds
        • Held together in ionic lattice
          • Gaint structures held together by electrostatic forces
        • dot and cross diagrams
          • Calcium ad Oxygen
            • Calcium loses 2
            • Oxygen gains 2
        • Empirical formulae
          • Calcium anfd flurione
            • 2 fluorine lose 2 electrons
            • 1 calcium gains 2 electrons
      • properties
        • Ionic compounds
          • Forma a giant lattice structure
          • Conduct electicity when iquid
        • Small Covalent molecules
          • Held together by strong intarmolecular forces
            • Forces within molecule
            • Held together by weak intermolecular forces
              • Untitled
    • States of matter
      • Types
        • Solids
          • Close together
            • vibrate
          • Same volume
        • Liquids
          • Close together
            • Flow randomly
          • Same volume
      • Gases
        • Random directions
          • Fills shape of container
        • Changes volume
      • Changing state
        • Lose r gain heat
          • Heating
            • Melting
              • Depends on strength of forces
            • Boiling
              • Depends on strength of forces
          • Cooling
            • Condensing
            • Freezing
  • Held together by electrostatic bonds
    • Forma a giant lattice structure
  • High meting point
    • Ionic compounds
      • Conduct electicity when iquid

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