Respuesta :

  • Electrons are the negatively charged sub-atomic particles of an atom.
  • Protons are the positively charged sub-atomic particles of an atom.
  • Neutrons are the chargeless sub-atomic particles of an atom.
  • 12 is the number of neutron in sodium.

Answer:

protons are found in the nucleus but neutrons can be used to determine atomic number and mass number

but I don't know the number of neutrons in sodium

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