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electron    音标拼音: [ɪl'ɛktrɑn]
n. 电子

电子

electron
电子

electron
电子

electron
n 1: an elementary particle with negative charge [synonym:
{electron}, {negatron}]

lepton \lepton\ n. (Physics)
an elementary particle that participates in weak interactions
but does not participate in the strong interaction; it has a
baryon number of 0. Some known leptons are the {electron},
the {negative muon}, the {tau-minus particle}, and the
neutrinos associated with each of these particles.
[WordNet 1.5 PJC]


Electron \E*lec"tron\, n. [NL., fr. Gr. 'h`lektron. See
{Electric}.]
1. Amber; also, the alloy of gold and silver, called
{electrum}. [archaic]
[1913 Webster]

2. (Physics & Chem.) one of the fundamental subatomic
particles, having a negative charge and about one
thousandth the mass of a hydrogen atom. 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}. Its mass is
practically constant at the lesser speeds, but increases
due to relativistic effects as the velocity approaches
that of light. Electrons are all of one kind, so far as is
known. Thus far, no structure has been detected within an
electron, and it is probably one of the ultimate composite
constituents of all matter. An atom or group of atoms from
which an electron has been detached has a positive charge
and is called a {cation}. Electrons are projected from the
cathode of vacuum tubes (including television picture
tubes) as {cathode rays} and from radioactive substances
as the {beta rays}. Previously also referred to as
{corpuscle}, an obsolete term. The motion of electrons
through metallic conductors is observed as an electric
current. 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}
[Webster 1913 Suppl. PJC] Electro-negative

58 Moby Thesaurus words for "electron":
Kern, NMR, alpha particle, antibaryon, antilepton, antimeson, atom,
atomic nucleus, atomic particle, baryon, beta particle,
cathode particle, electron affinity, electron cloud, electron pair,
electron shells, electron spin, electron transfer,
electron-positron pair, elementary particle, energy level,
excited state, extranuclear electrons, ground state, ion, lepton,
lone pair, meson, molecule, monad, negatron, neutron,
nuclear force, nuclear magnetic resonance, nuclear particle,
nuclear resonance, nucleon, nucleosynthesis, nucleus, octet,
orbital electron, photoelectron, photon, proton, quark,
recoil electron, secondary electron, shared pair, strangeness,
strong interaction, subvalent electrons, surface-bound electron,
thermion, triton, valence electron, valence electrons,
valence shell, wandering electron


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  • Electron - Wikipedia
    Electrons can exist as free particles As particle beams in a vacuum, free electrons can be accelerated, focused and used for applications like cathode ray tubes, electron microscopes, electron beam welding, lithography and particle accelerators that generate synchrotron radiation
  • Build cross-platform desktop apps with JavaScript, HTML, and CSS | Electron
    With the power of modern Chromium, Electron gives you an unopinionated blank slate to build your app Choose to integrate your favourite libraries and frameworks from the front-end ecosystem, or carve your own path with bespoke HTML code
  • Electron | Definition, Mass, Facts | Britannica
    Electron, lightest stable subatomic particle known It carries a negative charge of 1 6 x 10^-19 coulomb, which is considered the basic unit of electric charge The electron was discovered in 1897 by the English physicist J J Thomson during investigations of cathode rays
  • What Is an Electron? Definition and Facts
    An electron is a stable subatomic particle with a negative electrical charge Unlike protons and neutrons, electrons are not constructed from even smaller components
  • DOE Explains. . . Electrons | Department of Energy
    The electron is a subatomic particle that is found in all atoms Unlike protons, neutrons, or the nuclei of atoms, electrons are elementary particles This means they are not made of even smaller particles Also unlike protons and neutrons, electrons have essentially no mass
  • What is an Electron? - GeeksforGeeks
    Electron is a subatomic particle having a negative electric charge It is one of the three fundamental subatomic particles, along with protons and neutrons, that form atoms
  • 1. 9: The Properties of Protons, Neutrons, and Electrons
    Learning Objectives Describe the locations, charges, and masses of the three main subatomic particles Determine the number of protons and electrons in an atom Define…
  • What is an Electron? (with pictures) - AllTheScience
    An electron is a subatomic particle with a negative charge Though tiny compared to an atom, an electron is responsible for
  • Electron: Definition, Symbol Location with Example
    Electrons are located at fixed distances outside the atomic nucleus in pathways known as electron shells or orbitals An atom’s electronic configuration gives the address of an electron in an atom
  • ELECTRON Definition Meaning - Merriam-Webster
    The meaning of ELECTRON is an elementary particle consisting of a charge of negative electricity equal to about 1 602 × 10—19 coulomb and having a mass when at rest of about 9 109 × 10—31 kilogram or about 1 1836 that of a proton





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