Neutron

Neutral subatomic particle found in atomic nuclei, composed of 1 up and 2 down quarks.

Core Principles & Analysis

• Discovered by James Chadwick in 1932, earning him the 1935 Nobel Prize in Physics.
• A free neutron decays with a mean lifetime of about 880 seconds into a proton, electron, and antineutrino.
• Sustains chain reactions in nuclear reactors by inducing fission in uranium-235.

Specifications & Metrics

• MASS: 939.57 MeV/c²
• SPIN: 1/2
• SYMBOL: n⁰