What is electron?

  • (noun): An elementary particle with negative charge.
    Synonyms: negatron


The electron (symbol: e−) is a subatomic particle with a negative elementary electric charge.

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Some articles on electron:

Fock Matrix
... Hartree-Fock method of quantum mechanics, the Fock matrix is a matrix approximating the single-electron energy operator of a given quantum system in a given set of basis vectors ... It includes the effects of electron-electron repulsion only in an average way ... Importantly, because the Fock operator is a one-electron operator, it does not include the electron correlation energy ...
Inelastic Mean Free Path
... The inelastic mean free path (IMFP) is an index of how far an electron can travel through a solid before losing energy ... If a monochromatic primary beam of electrons is incident on a solid surface, the majority of incident electrons lose their energy because they interact strongly ... The intensity of the primary electrons, I0, is damped as a function of the distance, d, into the solid ...
Generalizations of Koopmans' Theorem - Koopmans' Theorem For Electron Affinities
... that Koopmans' theorem also allows the calculation of electron affinities as the energy of the lowest unoccupied molecular orbitals (LUMO) of the ... the original statement of Koopmans' to calculate the electron affinity in this sense ... Calculations of electron affinities using this statement of Koopmans' theorem have been criticized on the grounds that virtual (unoccupied) orbitals do not have well-founded physical interpretations ...
One-electron Universe
... The one-electron universe hypothesis, commonly associated with Richard Feynman when he mentioned it in his Nobel lecture, postulates that there exists only ...
Electron - Plasma Applications - Other Applications
... In the free-electron laser (FEL), a relativistic electron beam is passed through a pair of undulators containing arrays of dipole magnets, whose fields are ... The electrons emit synchrotron radiation, which, in turn, coherently interacts with the same electrons ... Electrons are at the heart of cathode ray tubes, which have been used extensively as display devices in laboratory instruments, computer monitors and television sets ...