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07/02/1932 Neutron is described

English physicist James Chadwick described a new elementary particle – the neutron. Interestingly, several other physicists performed similar measurements as Chadwick before him. They, though, interpreted them as just gamma rays, already known to science. The neutron discovery was essential to the production of nuclear power.


  • Essentials 

  • Description 

  • Discovery 

  • Beta decay and the stability of the nucleus 

  • Intrinsic properties 

  • Sources and production 

  • Applications 

  • Medical therapies 

  • Neutron temperature