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Toroidal ring model - Wikipedia
https://en.m.wikipedia.org/wiki/Toroidal_ring_model
The toroidal ring model, known originally as the Parson magneton or magnetic electron, is a physical model of subatomic particles. It is also known as the plasmoid ring, vortex ring, or helicon ring. This physical model treated electrons and protons as elementary particles, and was first proposed by Alfred Lauck Parson in 1915.
Electron magnetic moment - Wikipedia
https://en.m.wikipedia.org/wiki/Electron_magnetic_moment
In atomic physics, the electron magnetic moment, or more specifically the electron magnetic dipole moment, is the magnetic moment of an electron caused by its intrinsic properties of spin and electric charge. The value of the electron magnetic moment is approximately −9.284764×10−24 J/T. The electron magnetic moment has been measured to an accuracy of 7.6 parts in 10¹³.[1]
https://nationalmaglab.org/about/maglab-dictionary/electron-magnetic-resonance