History: The **electrically neutral** basic nuclear particle is called a ________.

The electrically neutral basic nuclear particle is called a ____.

• nucleon
  The word "nucleon" is a generic term that refers to either a proton (positively-charged) or a neutron (neutral).
• proton
  A proton is a positive charge (+1).
• neutron
  Correct! A neutron has no charge.
• electron
  An electron is NOT a basic nuclear particle, and it has a negative charge (-1).