Metallic bonding

• Metallic Bonding

  Involves delocalised electrons
• Metals

  • Consist of a giant structure
  • The electrons in the outer shell of the metal atoms are delocalised (free to move around)
  • There are strong forces of electrostatic attraction between the positive metal ions and the shared delocalised electrons
  • These forces of attraction hold the atoms together in a regular structure and are known as metallic bonding
  • Metallic bonding is very strong
• Substances held together by metallic bonding

  • Metallic elements
  • Alloys
• It's the delocalised electrons in the metallic bonds which produce all the properties of metals
• Most Metals

  • Are solid at room temperature
• Metals

  • Are good conductors of electricity and heat
• Most Metals

  • Are malleable
• Alloys

  • Are harder than pure metals
• Alloys

  • Mixture of two or more metals or a metal and another element
• Most of the metals we use everyday are alloys
• Alloys are harder and so more useful than pure metals