Definition of neutron in English:
A subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
- Even the protons and neutrons in the atomic nucleus are believed to made of even smaller particles called quarks.
- The result would be a star made entirely of neutrons, and these could be packed together as closely as the protons and neutrons in an atomic nucleus.
- If conditions are right, protons and electrons then fuse into neutrons, creating a neutron star.
Definition of neutron in:
- US English dictionary
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