Are electrons solid particles?

The concept of "solid" is irrelevant to electrons, the other leptons and quarks. These are particles which can be described within quantum field theory as disturbances of particular fields. They have little in common with the ordinary objects of experience that we describe as "solid. read more

" , Yes electrons are solid particles when they are not in motion and they have invariant mass of approximately 9.109 X 10^-31 kilograms. But when an electron is in motion it behaves as a wave. read more

but a combined effect of all electrons in the solid. [Regarding] the role and properties of electrons in solids. Let me start with the concept of the *effective* electron mass: in a solid the mass of the electron can strongly deviate from that of a free electron (i.e., in vacuum). read more

Now there are theories that maybe electrons can split into quasi-particles, like holon, spinon, and orbiton. My opinion is that we will forever be finding that what-ever the latest elementary particles we know about, those too will have sub-structures. read more