Transition metals and nano particles

    Cards (28)

    • where are transition metals found?
      Middle of the periodic table
    • Melting point of transition metals
      Relatively high
    • Density of transition metals
      Relatively high
    • Strength of transition metals
      Relatively high
    • Durability of transition metals
      Relatively high
    • Reactivity with oxygen,water and halogens of transition metals 

      Slow or not at all
    • Melting point of group 1 metals
      Relatively low
    • Density of group 1 metals
      Relatively low
    • Strength of group 1 metals
      Relatively low
    • Durability of group 1 metals
      Relatively low
    • Reactivity with oxygen. Water and halogens of group 1 metals
      Easy
    • Uses of transition metals
      Catalysts-increase rate of reaction without being used up
    • What do transition metals form ?
      Coloured compounds and many differently charged ions
    • What do group 1 metals form ?
      1+ ions
    • What do group 2 metals form ?
      2+ ions
    • measuring particles 

      coarse particles=10micrometres=1*10^-5m
      fine particles=100nm=1*10^-7m
      nanoparticles=1 to 100nm=1*10^-9 to 1*10^-7m
    • Bulk
      Property of something that is great in magnitude
    • Calculating surface area-to-volume ratio
      1.Find total surface area
      2.calculate volume
      3.Write in ratio format
      4.Divide total surface are by volume
    • Nano particles

      Different properties to bulk materials of same substance caused by high surface area-to-volume ratio making them more reactive
      used in healthcare ,electronics ,cosmetics and as catalysts
      potentially hazardous to health and eco systems
    • Catalysts
      Speed up reactions without being used up
    • Charge
      Property of a body which experiences force in an electrical field
    • Density
      Measure how compact a substance is
    • Particulate matter
      Another way of measuring very small particles
    • Name metals in group 1

      Lithium ,sodium ,potassium
    • Reactivity series

      Potassium
      sodium
      lithium
      Calcium
      magnesium
      aliminium
      Carbon
      zinc
      iron
      hydrogen
      copper
      silver
      gold
    • Independent variable
      Variable that cannot be changed by other variables
    • Dependent variable 

      Variable that depends on the value of another
    • Control variable
      Remains constant