Electron 01


Electron 01 : (Phys; Symb: e) An elementary particle with a unit negative electrical charge and a mass 1/1837 that of a proton. Electrons surround the positively charged nucleus and determine the chemical properties of the atom. Positive electrons, called positrons, also exist. Cf: Antimatter. Note: The weight of an electron is so infinitesimal that it would take 500 octillions (500 followed by 27 zeros) of them to make a pound
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