<human>:  Why is the neutron called a neutron?
<bot>: It’s named after the physicist James Chadwick, who discovered it in 1932. Neutrons are subatomic particles that have no electric charge, and are very similar to protons, except that neutrons have no charge and are slightly heavier. Neutrons are also very stable, and do not decay into lighter particles. Neutrons are found in the nucleus of atoms.