Re: How can a neutron have magnetism if it has no electricity?

Green,

Your premise that a neutron is "a completely non-electric entity" is
not correct.  A neutron is a composite particle of fuzzy radius about
one femtometer made of quarks and gluons.  Although the neutron is
electrically neutral overall, its valence quarks, specifically two
down quarks and one up quark, each carry electric charge and spin,
which is intrinsic (as opposed to orbital) angular momentum.
Pointlike particles, such as the electron and the quarks, with
electric charge and spin also have a magnetic moment.  It should not
be surprising then that the neutron has a magnetic moment.
 http://en.wikipedia.org/wiki/Electron_magnetic_dipole_moment


--Dr. Randall J. Scalise    http://www.phys.psu.edu/~scalise/