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Value. 1.602 176 634 × 10−19 C [1] The elementary charge, usually denoted by e, is a fundamental physical constant, defined as the electric charge carried by a single proton or, equivalently, the magnitude of the negative electric charge carried by a single electron, which has charge −1 e. [2] [a]
electron charge, (symbol e), fundamental physical constant expressing the naturally occurring unit of electric charge, equal to 1.602176634 × 10 −19 coulomb. In addition to the electron , all freely existing charged subatomic particles thus far discovered have an electric charge equal to this value or some whole-number multiple of it.
- The Editors of Encyclopaedia Britannica
The elementary charge, usually denoted by e, is the electric charge carried by a single proton or, equivalently, the magnitude of the negative electric charge carried by a single electron, which has charge −1 e. This elementary charge is a fundamental physical constant. e = 1.602176487 x 10-19C.
An elementary charge — that of a proton or electron — is approximately equal to 1.6×10-19Coulombs. Unlike protons, electrons can move from atom to atom. If an atom has an equal number of protons and electrons, its net charge is 0.
In physics and chemistry it is common to use the elementary charge ( e) as a unit. Chemistry also uses the Faraday constant, which is the charge of one mole of elementary charges. Overview. Diagram showing field lines and equipotentials around an electron, a negatively charged particle.
Defintion: Elementary Charge. The charge of an electron is sometimes referred to as the elementary charge and usually denoted by \(e\). The elementary charge is a fundamental physical constant and as of May 2019, its value is defined to be exactly \(1.602176634 \times 10^{−19}\, C\).
19. Okt. 2019 · The electron is an elementary particle, part of the SM, pointlike, with no substructure, or spatial extent. Its intrinsic properties include its EM charge, which we still call the elementary charge. Originally the name electron comes from electric ion, and it was discovered around the 1900s.
