electron

"electron" is also a: user

created by toebee

(idea) by everyone (3.6 wk) (print) ? I like it! Tue Jun 13 2000 at 3:17:14

An interesting thing about the word electron is that it comes from the Greek word "elektron", which means amber. Why is this? When you rub amber against wool, electrons are transfered, and static electricity is generated. Weird etymology.

(thing) by quantumet (3 y) (print) ? 2 C!s I like it! Fri Aug 10 2001 at 2:30:14

One of the basic constituents of matter. Modern theory describes an electron as a wave-particle, which behaves unlike everyday waves or particles. Below is a list of the basic properties of the electron.

The electron is a member of the lepton family of particles, and one of the three basic particles that form atoms. It is typically found in clouds surrounding atomic nuclei, but is relatively easy to separate from an atom into electron beams, or just into electric current. Electrons are fundamental particles, that is, they are not composed of anything else.

The electron is the primary conductor of electric charge, since it is much more free to move about matter than its counterpart, the proton, which is far heavier.

It has a charge of -1 elementary charges, and its antiparticle, the positron, has a charge of 1. In coulombs, this charge is 1.60217733(49)x10^-19

An electron's rest mass is 1/1804 of that of a proton, or 9.1093897x10^-31 kg

The electron-volt, a unit of energy, is defined as the energy gained by one electron in going through an electric potential of 1 volt. It is a very small unit, with one mega-electronvolt(MeV) being equal to 1.602x10^-13 joules. The rest mass of the electron, measured in electron volts (Thanks to Einstein's little formula) is 0.5109906 MeV.

The radius of an electron is 2.81794092x10^-15 m, if considered as a particle, though modern theory sees an electron as a wavepacket, not as a particle. The wavelike nature of the electron is utilized in things like electron microscopes and many puzzling quantum mechanics experiments

(definition) by Webster 1913 (print) 1 C! I like it! Tue Dec 21 1999 at 23:19:58

E*lec"tron (?), n. [NL., fr. Gr. 'h`lektron. See Electric.]

Amber; also, the alloy of gold and silver, called electrum.

E*lec"tron (?), [NL., fr. Gr. &?;. See Electric.] (Physics & Chem.)

One of those particles, having about one thousandth the mass of a hydrogen atom, which are projected from the cathode of a vacuum tube as the cathode rays and from radioactive substances as the beta rays; -- called also corpuscle. The electron carries (or is) a natural unit of negative electricity, equal to 3.4 x 10^-10 electrostatic units. It has been detected only when in rapid motion; its mass, which is electromagnetic, is practically constant at the lesser speeds, but increases as the velocity approaches that of light. Electrons are all of one kind, so far as known, and probably are the ultimate constituents of all atoms. An atom from which an electron has been detached has a positive charge and is called a coelectron.

printable version
chaos

wave-particle	lepton	atom, molecule, nucleus, proton, neutron, electron	There is only one electron
My techie chick	Adventure Thru Inner Space	Electron Orbitals	atom
virtual particle	religion	proton	Sir Joseph John Thomson
Subrahmanyan Chandrasekhar	antiparticle	Etymology	cyclotron frequency
Lewis dot structure	Eisensteinium	Isotopes of Hydrogen	Dr. Device
The music that makes me think of New York	Quantum dot	Uranium	ground state

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electron

See also: Acorn Electron

"electron" is also a: user