metals and non-metals

Cards (8)

  • what are metals?

    metals are elements which can form positive ions when they react
  • what are non-metals?

    elements that don't generally form positive ions when they react
  • how do atoms form a full outer shell?

    by gaining, losing or sharing electrons
  • why is it easier for metals to form ions?

    as they don't have to remove many electrons and metals towards the bottom the periodic table have an outer shell that is further away from the nucleus which means electrons will have a weaker attraction.
  • what are the properties of metals?
    • they are strong but can be bent or hammered into a shape (malleable)
    • great conductors of heat and electricity
    • high melting and boiling points
  • what are the properties of non-metals?
    • brittle
    • aren't always solid at room temperature
    • poor conductors of heat and electricity
    • lower density
  • where can transition metals be found?

    found in the centre of the periodic table between group 2 and 3
  • what are the special properties of transition metals?
    • can have more than one ion
    • often coloured
    • good catalysts