Neutron Mass
The neutron is a neutral subatomic particle found in the nucleus of atoms. Its rest mass is approximately 1.675 × 10⁻²⁷ kilograms (or about 939.6 MeV/c² in energy units).
Neutrons, together with protons, form the atomic nucleus and are essential for the stability of most atoms.
Summary:
Rest mass ≈ 1.675 × 10⁻²⁷ kg
Equivalent to about 939.6 MeV/c²
Neutral particle found in atomic nuclei