Radioactive Particles key information

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  • Created by: Ella
  • Created on: 15-01-14 18:58
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  • Radioactive Particles
    • Alpha particles
      • Contain 2 protons and 2 neutrons
      • Have a mass of 4
      • Have a charge of 2+
      • Can only travel a few cm in air.
      • Can be blocked by paper and skin.
    • Beta particles
      • Are made up of one election.
      • Have a charge of 1-.
      • Have a very small mass.
      • Can travel 1 metre in air.
      • Blocked by a few cm of aluminium.
    • Gamma particles
      • Electromagnetic waves
      • No mass or charge.
      • Can travel for many km in air.
      • Can be blocked by a few cm of lead or a few ft of concrete


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