For 10 points, name this particle that orbits the nucleus with a negative charge.
One of these particles is emitted when a vacancy in an atom is filled in the Auger effect, and these particles were scattered off a nickel target to demonstrate their wave behavior in the Davisson-Germer experiment. These particles scatter photons in the Compton effect, and one experiment reached equilibrium between buoyant and gravitational forces on oil drops to measure the charge of these particles, an experiment conducted by Robert Millikan. This particle was discovered through a cathode ray experiment by J.J. Thomson, and its antiparticle is the positron. For 10 points, name this particle that orbits the nucleus with a negative charge.
One of these particles is emitted when a vacancy in an atom is filled in the Auger effect, and these particles were scattered off a nickel target to demonstrate their wave behavior in the Davisson-Germer experiment.
Electron