Metallic bonding

• • electrons in outer shell are delocalised, so are free to move
• • there are strong forces of electrostatic attraction between positive metal ions and shared negative ions
  • metallic bonding is very strong
• • metals are good conductors of electricity and heat
  • the delocalised electrons can carry electrical charge through metal
  • the delocalised electrins can transfer energy
• • metals have high melting and boiling points
  • metals are solid at room temperature
  • electrostatic forces between metal atoms and delocalised electrons are strong
  • so lots of energy needed to overcome bonds