radiation

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  • Created by: hedghoge
  • Created on: 22-01-22 12:30
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  • radioactivity
    • radioactive decay
      • radioactive substances are substances that decay radioactively
      • alpha radiation
        • proeduces a helium nuclei also know as alpha parcticles
      • beta radiation
        • releases electrons also know as beta particles
      • gamma radiation
        • it is a high energy electromagnetic wave with a higher frequency than x-rays
      • uses /emitters
        • photographic film
        • bananas are slightly reactive
        • the sun
        • rocks
    • fission
      • Nuclear fission splits 1 nucleus into 2 or more smaller nuclei. It usually happens in nuclear reactors.
      • A neutron collides with a large nucleus and is absorbed. This creates an unstable nucleus.
      • This nucleus then splits into fragments. This releases large amounts of energy and more neutrons. These neutrons can then collide with other nuclei.
      • The energy released is used to boil water, which rotates a turbine. The turbine then turns a generator, which produces electricity.
    • danger of radiation
      • irradiation
      • contamination
        • the object becomes radioactive
  • contamination
    • the object becomes radioactive

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