Metals

Metals

1. How metals are obtained

   • It mines,the useful minerals,or ore and the useless minerals or gangueare together and must be separated using differents process.When the ore is separated , from the gangue the next step is to make metal from the ore.There ore is taken to an ironwords and undergoes complex physical and chemical process.

2. Clasiiflyng metals

   • Good electrican,,Thermal, and acustical conductors
   • There are ductile and malleable
   • Are through
   • Also can be use for weiding
   • Some are magnetic
   • Most of then rust when they come into contact with air
   • They expand when the temperature rides and contract when it coolds
   • Can be reycled and reused
   • Properties of metals
   • Ferrues matals:Their main componet ir Iron
     • Pure iron
     • Steel
     • Cast iron
   • Non-ferrus metals:Their main component is not iron
     • Types
       • Ultra ligths metals
       • Lights metal
       • Heavy metals