Does an electron have its own sub-particles?

Electrons are believed to be fundamental particles, unlike protons and neutrons, which are believed to be made of three quarks each. Their “internal structure”, seems to be so fundamentally different! read more

Answered Aug 7, 2015 · Author has 2.2k answers and 2.3m answer views Electrons most definitely don't have quarks as sub-particles. In all experiments performed to date electrons appear to be fundamental particles with no substructure. read more

The rest mass of the electron is 9.10938356 × 10 −31 kg, which is only 1 / 1,836 the mass of a proton. An electron is therefore considered nearly massless in comparison with a proton or a neutron, and the electron mass is not included in calculating the mass number of an atom. read more

"Spin is the total angular momentum, or intrinsic angular momentum, of a body. The spins of elementary particles are analogous to the spins of macroscopic bodies. In fact, the spin of a planet is the sum of the spins and the orbital angular momenta of all its elementary particles. read more