Which subatomic particle, found in the nucleus of an atom, has no electric charge?

Neutron

Discovered by James Chadwick in 1932, the neutron resides in the nucleus and acts as a 'nuclear glue' to help hold positively charged protons together. While it has no net electric charge, its mass is actually slightly greater than that of a proton. The specific number of neutrons in an atom's nucleus determines its isotope, which can influence whether an element is stable or radioactive.