Nuclear chemistry

    Cards (14)

    • What is a nuclear reaction?
      Involves changes to the nucleus
    • Properties of alpha decay?
      • symbol isα\alpha
      • emits a helium atom
      • consists of a helium nucleus
      • attracted to a negatively charged plate
      • travels a few centimetres in the air
      • can be stopped by a sheet of paper
    • Properties of Beta decay?
      • symbol ofβ\beta
      • they are electrons emitted from the nucleus
      • thought to be a neutron that splits in the nucleus, into a proton and electron
      • attracted to a positively charged plate
      • more penetrating than α\alpha
      • can be stopped by a sheet of metal foil or Perspex
      • they can move 1 metre in the air
    • What are the properties of Gamma decay?
      • symbol of γ\gamma
      • electromagnetic waves emitted within the nuclei
      • not deflected by an electric field
      • most penetrating, they can be stopped by very thick sheet of lead or concrete
      • most dangerous type of radiation
      • they can travel multiple metres in the air
    • what is the main difference between radioactivity and chemical reactions?
      chemical reactions are changes in the electron arrangements, while radioactivity is the change of the nuclei
    • What is a radioisotope?
      an unstable nuclei
    • Symbol equation for alpha atom?
      42\frac{4}{2}He
    • Symbol for beta particle equations?
      01\frac{0}{-1}e
    • Symbol for proton equations?
      11\frac{1}{1}p
    • symbol for neutron equations?
      10\frac{1}{0}
    • "when α\alpha is emitted..." What is the α\alpha particle?

      A product
    • "A particle absorbingα\alpha particle.." What is α\alpha?

      A reactant
    • Define half-life
      is the time for half of the nuclei, of a particular isotope, to decay.
    • does the state of matter (i.e element or compound) of a radioisotope matter?
      No
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