Metals and non-metals

• Are most elements metals or non-metals ?

  Metals.
• Do non-metals form positive or negative ions when they react ?

  Negative Ions.
• Where on the periodic table are transition metals found ?

  Middle
• Give 3 special properties of transition metals ( properties that normal metals don’t have ).

  krjd

  • 1 ) They make good catalysts e.g An iron catalyst is used in the Haber process to produce Ammonia
  • 2 ) Their ions are often coloured and so they can form colourful compounds
  • 3 ) Have more than 1 ion e.g Copper can form Cu+ and Cu2+
• what are the physical properties of a typical metal ?

  • 1 ) Strong (hard to break)
  • 2 )Malleable (beat or hammered into shape)
  • 3 )Ductile (can be shaped into wires)
  • 4 )Good conductors
  • 5 )High melting and boiling points
  • 6 )Dense
  • 7 )Shiny
• Do metals form positive or negative ions when they react ?

  Positive Ions.
• Physical properties of most non-metals ?

  Fgg

  • 1 ) Brittle
  • 2 ) Dull (not shiny)
  • 3 ) Lower melting and boiling point
  • 4 ) Poor conductors of electricity
  • 5 )Lower density