Proton
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A proton is a stable subatomic particle, symbol p, H+, or 1H+ with a positive electric charge of +1 e. Its mass is slightly less than the mass of a neutron and approximately 1836 times the mass of an
Ernest Rutherford at the first Solvay Conference, 1911
Electron
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The electron is a subatomic particle whose electric charge is negative one elementary charge. It is an elementary particle contained in the matter that makes up the universe.
Proton
…positive electric charge of +1 e (elementary charge). Its mass is slightly less than the mass of a neutron and approximately 1836 times the mass of an electron (the proton-to-electron mass ratio). Protons and neutrons, each with a mass of approximately one dalton, are jointly referred to as nucleons (particles…
A beam of electrons deflected by a magnetic field into a circle
J. J. Thomson
Robert Millikan
A lightning discharge consists primarily of a flow of electrons. The electric potential needed for lightning can be generated by a triboelectric effect.