Chemical Bonding

HideShow resource information
View mindmap
  • Chemical Bonding
    • Ionic Bonding
      • Properties of Ionic Compounds
        • High Melting / Boiling Points
          • Has a giant lattice of oppositely charged ions .
          • Requires large amounts of energy to break up
        • Hard but Brittle
          • Distortion can cause 2 positive and 2 negative charged ions facing each other and will repel.
          • Will break up.
        • Dissolve in water
          • Water is a polar liquid and has a permanent dipole
          • A Electronegative element, it attracts electrons towards itself in a covalent bond.
        • Do not conduct electricity as a solid
          • Ions in the giant lattice are in fixed positions and are not free
        • Does conduct electricity in aq solution or when molten
          • The ions need to be free or mobile to carry the electric current
      • An ionic Bond is the electrostatic attractive forces between oppositely charged ions.
    • Covalent Bonding
      • The electrostatic, the shared electron pair is attracted to both nucliei
      • Properties of Covalent bonding
        • Low Melting/ Boiling points
          • The covalent bonds are strong.
          • Has weak intermolecular forces between the molecules
        • Insoluble in water
          • Water is a polar solvent and does not dissolve non-polar covalent materials
      • Diamond
        • High melting/boiling point
          • Has Strong covalent bonds. Changes from a solid to a gas
        • Does not conduct electricity
          • Does not have any delocalised electrons
        • Good Thermal conductor
          • Vibrations travel easily through the lattice
      • Graphite
        • High melting / boiling points
          • Has strong covalent bonds in the hexagon sheets
        • Conducts electricity
          • Has delocalised electrons which are free. An electric current can flow.
        • Slippery
          • Has weak bonds between the layers which easily break. Sheets can slide over each other.
      • Dative Covalent bonding
        • Both Electrons are donated by the same atom
        • Examples are NH4+, H3O+, CO,
    • Metallic Bonding
      • Attraction between positive metal ions and delocalised electrons
      • Properties of metallic bonding
        • High melting and boiling points
          • Has a strong electrostatic attraction between the positive ions and electrons.
          • A lot of heat energy is needed to overcome the bonds.
        • Good electrical conductor
          • The delocalised electrons can carry a current
        • Insoluble
          • Strength of the metallic bonds
    • A chemical Bond is an electrostatic force of attraction between positive and negitive particles.


No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Bonding & shapes resources »