Metallic Bonding

    Cards (5)

    • describe the structure of a metal
      Metals are made of a giant lattice of positive metal ions surrounded by a sea of delocalised electrons
    • What is metallic bonding?
      electrostatic force of attraction between positive metal ions
    • Explain why metals are good conductors of heat?
      Metals have sea of delocalised electrons that carry charge
    • Why do metals have high melting and boiling
      points?
      They have strong electrostatic force of attraction
      they require lots of energy to overcome
    • Explain why the alloy of copper and zinc is harder than pure copper 

      1. Pure coppers are all the same size so layers can slide over each other
      2. In the alloy the atoms are all different sizes so the layers are distorted and they cant slide over each other.