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💏intro to chemistry review

Nucleons

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

Nucleons are the particles that make up an atomic nucleus, specifically protons and neutrons. They are held together by the strong nuclear force.

5 Must Know Facts For Your Next Test

  1. Nucleons determine the mass number of an atom, which is the sum of protons and neutrons.
  2. The strong nuclear force binds nucleons together within the nucleus despite the electrostatic repulsion between protons.
  3. Neutrons have no electric charge, while protons have a positive charge.
  4. Nuclear stability is influenced by the ratio of neutrons to protons in a nucleus.
  5. In nuclear reactions, nucleons can be rearranged or transformed, leading to changes in atomic identity or isotopes.

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