Diamond

• Pure diamond are lustrous and colourless. What is this ideal for

  Jewellery
• Define "lustrous"


  Sparkly
• Diamonds are really hard. Why is this

  Each carbon atom forms four covalent bonds in a very rigid giant covalent structure
• Diamonds are very hard. What does this make diamonds ideal for

  Cutting tools
• Why do diamonds have a high melting and boiling point

  Because of all those strong covalent bonds which take lots of energy to break - which is another reason why diamond is a good cutting tool
• Why doesn't diamond conduct electricity

  It has no free electrons or ions