Relative Charges of the Proton, Electron & Neutron

  • Protons, neutrons and electrons are the subatomic particles that make up atoms.
  • Each of the subatomic particles has a different mass and a different electric charge which is summarised in the following table.

Sub-atomic particle comparison - Charge, IGCSE & GCSE Chemistry revision notes

  • Atoms are neutral and uncharged even though they contain charged subatomic particles.
  • Since the charge on a proton is +1 and on an electron is -1, then the number of protons must be the same as the number of electrons for the charges to cancel each other out and produce a neutral atom.

AQA GCSE Chemistry Notes

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Morgan Curtin Chemistry

Author: Morgan

Morgan’s passion for the Periodic Table begun on his 10th birthday when he received his first Chemistry set. After studying the subject at university he went on to become a fully fledged Chemistry teacher, and now works in an international school in Madrid! In his spare time he helps create our fantastic resources to help you ace your exams.