An electron is a subatomic particle with a negative  charge.

  • Electrons are thought to be elementary particles because they have no known components or substructure.
  • Like all elementary particles, electrons exhibit properties of both particles and waves: they can collide with other particles and can be diffracted like light.
  • Since an electron has a negative charge, it has a surrounding electric field, and in motion generates a magnetic field.
  • Electrons radiate or absorb energy in the form of photons when they are accelerated.
  • Electrons play an essential role in numerous physical phenomena, such as electricity, magnetism, chemistry and thermal conductivity, and they also participate in gravitational, electromagnetic and weak interactions.