Metals

• Most elements in periodic table are metals

  
• Group 1 and 2 have very reactive metals
• The elements in the middle are less reactive than metals in group 1 and 2
• Metals - when they react they lose electrons to archieve a full outer shell

  This gives them a stable electronic structure of a group 0 noble gas
• When they react they lose their outer electron and then have a full outershell - this causes the metal to form a positive ion