Bonding

• Ions


  Formed when atoms either gain or lose electrons
• Oxidation


  Is the loss of electrons
• reduction


  Is the gain of electrons
• Ionic bond


  Is the strong electrostatic attraction between oppositely charged ions
• When atoms share a pair of electrons they form covalent bonds. Some covalently bonded substances consist of molecules such as.. H2, CI2..
• Covalent bonding


  Is the strong electrostatic attraction between the atoms’ pair of electrons and the nucleus’ of the atoms involved
• Metallic bonding


  Is the strong electrostatic bonding between positive metal ions and a sea of delocalised electrons