Radiactivity

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  1. Units of radioactivitybecquerel
  2. The smallest particle of an element that retains its chemical propertiesatom
  3. he time taken for half the radioactive nuclei in a sample to decayhalf-life
  4. The type of radiation made up of electronsbeta
  5. The central part of an atom that contains protons and neutronsnucleus
  6. The type of radiation that is a high-energy electromagnetic wavegamma
  7. The process by which unstable atomic nuclei emit particles or EM radiationradioactivity
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