Metallic Bonding

• What do structures do metal elements exist as?

  Giant metallic lattice structures
• What is metallic bonding between?

  A positive metal ion a a negative delocalised electron
• Why do metals have high melting points?

  • Strong electrostatic attraction between the positive metal ions and the delocalised electrons
  • So high energy is needed to overcome the bonds
• Why do metals have the ability to change shape?

  • No bonds holding specific ions together
  • The metal ions can slide over each other when the structure is pulled
  • so metals are malleable (can be shaped) and ductile (can be drawn into a thin wire)
• Why can metals conductors?

  • Delocalised electrons can pass kinetic energy to each other So are good thermal conductors.
  • Delocalised electrons can move and carry charge So are good electrical conductors
• Are metals soluble or insoluble and why?

  Insoluble except in liquid metals

  • Due to the strength of the metallic bonds