Metals and non-metals: Chemistry: WJEC: GCSE (9:1)

• Metals

  Elements which form positive ions

  
• Non-metals


  Elements which do not form positive ions

  
• Metals position on periodic table

  on the left hand side

  
• Non-metals position on periodic table

  on the right hand side

  
• Physical properties of metals

  Shiny, malleable, ductile, good conductors of heat and electricity

  
• Physical properties of non-metals

  Dull, brittle, insulators of heat and electricty, liquids and gases at room temperature

  
• Malleable


  easy to shape or bend

  
• Ductile


  Easily stretched into a wire

  
• Good conductor of heat


  Allows heat energy to travel through with ease

  
• Good conductor of electricity


  Allows electrical current to flow through with ease

  
• Brittle


  Easily broken

  
• Insulator of heat


  a material that does not allow heat to pass through easily

  
• Insulator of electricity


  a material that does not allow electric current to pass through easily

  
• pH of metal oxides


  acidic

  
• pH of non-metal oxides

  basic