Metals

Metals

1. Chemical elements are organised in the periodic table,where they are two groups:meteal and non-metals

2. Types of metals:iron,copper,silver,tin,gold,mercury and lead

3. The general properties of metals are:castability,weldability,ductility,malleability,foldability and machinability

4. The metals are obtained at mineral extraction,separating the ore and gangue to obtainn metalingots...

5. The environmental impact of extracting metals:mining spoils the landscape,blasting...

6. Drilling tools:drills,drill bits and punches.

   • Filing tool:grinders or emergy grinders,files and sandpaper
     • Cutting tools:electric and hand tools