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Electrons are not known to be made up of smaller particles.
This means that the proton is known to be made up of smaller particles; the electron not.
The electron has not other components, it is a fundamental particles. But neutrinos are smaller than the electron.
A electron(s) in a orbital around a nucleus made of protons and neutrons.
The masses of all three particles are different The masses of a proton and the mass of a neutron are very close, however. The mass of an electron is much smaller than the mass of a proton or neutron.
The electron is, as far as we know, fundamental; it's not made up of smaller particles.
Electrons are not known to be made up of smaller particles.
This means that the proton is known to be made up of smaller particles; the electron not.
The electron has not other components, it is a fundamental particles. But neutrinos are smaller than the electron.
Electron is fundamental particle because hi isnt made up of smaller particles like proton.
electrons are elementary particles and thus not made of smaller particles. protons and neutrons are hadrons being made of three quarks.
sub-atomic particles are within the atom (and remember, atoms are everywhere): the electron, proton and neutron are all sub-atomic particles, but there are even smaller particles (and anti-particles) called quarks that make up the proton, neutron and electron.
Electrons for one, and protons and neutrons are composed of quarks
It is a very hard question to answer because the visualisation of an electron is very counter-intuitive. When we imagine an electron, we think of something like a very little steel ball. It does not look like it. Actually we can give a size to a proton because it is made of other particles (Quarks) therefore we have something to compare it to. however, the electron, and the quarks at the same time, are elementary particles and up to today, we have no means to compare it to anything.
J.J. Thompson
It really depends what particle you are comparing it to. Compared with the neutron and proton: The electron has a much smaller mass - roughly 2000 times smaller than the neutron or proton. As far as we know, the electron is a truly elementary particle. Protons and neutrons are made up of smaller particles (the quarks). The electron has a negative charge, the proton a positive charge, and the neutron is electrically neutral.
A electron(s) in a orbital around a nucleus made of protons and neutrons.