non-metals

• non-metals form

  negative ions

  
• non-metals in group 7 gain one electron to form ions with

  -1 charge

  
• noble gases do not form negative ions

  because they are chemically inert

  
• non-metals have 4 to 7 electrons in the

  outer shell

  
• non-metals use what type of bonding?

  covalent

  
• non-metals are what type of conductors?

  poor

  
• what type of oxides are non-metals?

  acidic oxides

  
• what does not react with acids?

  non-metals
• non-metals are

  flaky

  
• non-metals are very

  brittle

  
• non-metals have a very low

  melting point

  
• non-metals have a

  low boiling point