Observing Nuclear Radiation

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  • The basic structure of an atomis a small central nucleus, made up of protons and neutrons, surrounded by electrons.
  • The nuclei of radioactive substances are unstable. They bcome stable by radioactive decay. In this process, they emit radiation and turn into other elements.
  • The three types of radiation emitted are: alpha radiation; beta radiation; gamma radiation.
  • We cannot predict when an unstable


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