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How to remember the parts of an Atom - Proton Electron and Neutron

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asked Apr 11, 2015 by nanospeck (6,340 points)

An atom contains the proton, electron and neutron how can we memorize that?

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answered Apr 11, 2015 by nanospeck (6,340 points)
edited Jan 21, 2017 by nanospeck

One simple way is to remember the word : 

PEN

  • P - Protons
  • E - Electrons
  • N - Neutrons

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