The Periodic Table

The Periodic Table

1. Metals

   • Sonorous (ring when hit)
   • Conducts electricity
   • Conductor of heat
   • High density
   • Malleable
   • Ductile
   • Shiny

2. Non-metals

   • Dull
   • Brittle
   • Never Ductile
   • Never magnetic
   • Never malleable
   • Low density
   • Poor conductors of heat
   • Poor conductor of electricity
   • Never Sonorous

3. Groups and Periods

   • Groups: Vertical Columns
   • Periods: Horizontal Rows
   • Elements have different physical and chemical properties to each other.
   • Group 1
     • From top to bottom of the group, the boiling point and melting point decreases
     • From bottom to top of the group, the vigour of the reaction with water decreases
     • All Group 1 elements react with water to make a hydrogen and alkaline solution.
     • Called the 'Alkaline Metals'
     • Low densities
     • Conduct electricity
   • Group 7
     • Called the 'Halogens'
     • They are non-metals
     • From top to bottom of the group, the melting and boiling point increases
     • All Group 7 elements are reactive
     • The vigour of the reactions increase from bottom to top
     • They do not conduct electricity
     • The colour darkens from top to bottom
     • The elements are: Flourine, Chlorine, Bromine, Iodine and Astetine
   • Group 0 (8)
     • Very low melting and boiling points
     • Colourless Gases
     • They glow brightly when high voltage electricity is passed through them - used in advertising signs
     • Mostly unreactive, but they do get slightly more reactive down the group