metals

• pure metals properties


  • layers ordered
  • layers slide when force is applied
• are pure metals soft or hard


  soft
• what are alloys


  mixture of different substances, layers are disordered, layers can't slide, different sized atoms means that layers cannot slide
• are alloys hard or soft


  hard
• examples of alloys

  • stainless steel (Fe ,C ,Ni)
  • grass (Cu ,Sn)
• properties of metals


  • hard
  • conducts heat
  • malleable ( can be hammered into shape)
  • ductile (can be made into wires)
  • high melting point
• why do metals conduct electricity


  • has delocalised electrons that carry charge through the structure