Paper 1

• What is the melting and boiling point of ionic bonds?

  High
• What is the melting and boiling point if covalent bonds?

  Low
• Properties of Ionic bonds?

  . High MP + BP

  . Strong electrostatic force of attraction

  . Good conductor heat / electricity ~~>> when molten or aqueous
• Properties of covalent bonds?

  . Low MP + BP

  . Force of attraction is weak

  . Cannot conduct heat and electricity
• Properties of metallic bonds?

  . Sea of delocalised electrons

  . Strong and Hard

  . Good conductor of heat and electricity

  . Shiny and malleable