![]() Like all elementary particles, electrons exhibit properties of both particles and waves: They can collide with other particles and can be diffracted like light. Being fermions, no two electrons can occupy the same quantum state, in accordance with the Pauli exclusion principle. Quantum mechanical properties of the electron include an intrinsic angular momentum (spin) of a half-integer value, expressed in units of the reduced Planck constant, ħ. The electron's mass is approximately 1/1836 that of the proton. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure. The electron (e− or β−) is a subatomic particle with a negative one elementary electric charge. Wikipedia Rate this definition: 0.0 / 0 votes A particle identical to the electron in mass and most other respects, but having a positive instead of a negative charge, is called a positron, or antielectron ![]() The motion of electrons through metallic conductors is observed as an electric current. Previously also referred to as corpuscle, an obsolete term. Electrons are projected from the cathode of vacuum tubes (including television picture tubes) as cathode rays and from radioactive substances as the beta rays. An atom or group of atoms from which an electron has been detached has a positive charge and is called a cation. Thus far, no structure has been detected within an electron, and it is probably one of the ultimate composite constituents of all matter. Electrons are all of one kind, so far as is known. Its mass is practically constant at the lesser speeds, but increases due to relativistic effects as the velocity approaches that of light. The electron carries (or is) a natural unit of negative electricity, equal to 3.4 x 10-10 electrostatic units, and is classed by physicists as a lepton. (Physics & Chem.) one of the fundamental subatomic particles, having a negative charge and about one thousandth the mass of a hydrogen atom. GCIDE Rate this definition: 0.0 / 0 votes
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