Wikipedia:Reference desk/Archives/Science/2023 June 7

= June 7 =

Magnetic dipole for a proton?
The magnetic dipole of an electron seems to be a well established and understood concept, but is there any known equivalent for a proton? Byron Forbes (talk) 17:50, 7 June 2023 (UTC)
 * Protons, neutrons and electrons all have magnetic dipole moments, but the ones for protons and neutrons are about 1000 times smaller. So magnetic effects in materials are due primarily to the electrons. See https://www.physicsforums.com/threads/are-protons-neutrons-magnetic-do-they-have-north-and-south-poles.567358/ Philvoids (talk) 20:16, 7 June 2023 (UTC)
 * I would expect that most observable magnetic effects in materials are due to the orbital dipole moments of particles, not their spin moments, whereas I think the "magnetic dipole moment of the electron" refers to its spin moment. Happy to be corrected on either point. --Trovatore (talk) 21:38, 7 June 2023 (UTC)
 * Se also Nucleon magnetic moment. Ruslik_ Zero 20:21, 7 June 2023 (UTC)
 * The fact that a neutron has a magnetic moment drives lots of chemistry students crazy if they've taken intro-physics. DMacks (talk) 15:32, 8 June 2023 (UTC)
 * There's a handy table here (although it doesn't match the section heading): Magnetic_moment. --Amble (talk) 21:34, 7 June 2023 (UTC)
 * Thanks to all for those replies. Byron Forbes (talk) 06:19, 8 June 2023 (UTC)