Electron

An elementary negatively charged particle orbiting within an atom, the electrons are arranged in shells - and it is the outermost shell electrons which take part in bond formation.

Electron

Particle in an atom carrying a negative charge.

Electron

A subatomic particle having a mass of 0.00054858 amu and a charge of 1-.
Found on http://home.nas.net/~dbc/cic_hamilton/dictionary/a.html

Electron

An elementary particle with a unit electrical charge and a mass 1/1837 of the proton. Electrons surround the atom's positively charged nucleus and determine the atom's chemical properties. In our diagrams, an electron is represented by this:
Found on http://ie.lbl.gov/education/glossary/glossaryf.htm

Electron

A tiny speck of electric charge, so-far impossible to break into smaller pieces, weighing in at 9.109 × 10-31 kg and a charge of 1.602 × 10-19 Coulombs. An electron is so small that its 'size' is a nebulous concept; if it were a little round ball, it would be about 10-15 m across.
Found on http://www.kcpc.usyd.edu.au/discovery/glossary-all.html

Electron

A negatively charged elementary particle that normally resides outside (but is bound to) the nucleus of an atom.
Found on http://hesperia.gsfc.nasa.gov/sftheory/glossary.htm

Electron

the negatively charged elements of an atom which circle the nucleus. If an electron is lost the atom becomes a relatively positively charged ion. It has been ionised .
Found on http://www.eclipse.co.uk/moordent/page5.html

Electron

The electron is a low mass particle ( 1/1836 that of a Photon ) with a unit negative electric charge. In simple terms the electrons are said to orbit around the Nucleus of Atoms . Positively charged electrons can also exist, these being known as Positrons . The electrons is closely related (identical in fact) to the Beta Particle .
Found on http://www.ionactive.co.uk/glossary.html

electron

[n] - an elementary particle with negative charge
Found on http://www.webdictionary.co.uk/definition.php?query=electron

Electron

An atomic particle that carries a negative charge. It orbits the nucleus of an atom.
Found on http://www.delscope.demon.co.uk/astronomy/glossary.htm

Electron

An elementary particle with low mass, 1/1836 that of a proton, and unit negative electric charge. Positively charged electrons, called positrons, also exist. See also Beta Particle.
Found on http://www.encyclo.co.uk/local/20474

Electron

Electrons are negatively charged elementary particles, which encircle the positively charged core of an atom. Freely moving electrons can transport an electrical current.
Found on http://www.adixen.co.uk//Applications_and_more/Glossary(1-64--3-20011).html

Electron

The least massive electrically-charged particle, hence absolutely stable.It is the most common lepton, with electric charge -1.A unit of energy equal to the kinetic energy acquired by an electron or protonfalling through an electric potential difference of 1 volt.Electrons surround the atom's positively charged nucleus and determine the atom's chem...
Found on http://www.diracdelta.co.uk/science/source/e/l/electron/source.html

Electron

A subatomic particle having a mass of 0.00054858 amu and a charge of 1-
Found on http://www.allchemicals.info/index/action/detail/keyword/E/id/1059560866.ph

electron

(e-) Compare with proton and neutron. A fundamental consituent of matter, having a negative charge of 1.602 176 462 × 10-19 coulombs ± 0.000 000 063 × 10-19 coulombs and a mass of 9.109 381 88 × 10-31 kg ± 0.000 000 72 × 10-31 kg [1998 CODATA values].
Found on http://antoine.frostburg.edu/chem/senese/101/glossary/e.shtml

electron

Electron is discovered by J.J. Thompson (1856-1940) in 1896. The electron is an elementary particle with a negative electric charge of (1.602 189 2 ± 0.000 004 6) × 10-19 C and a mass of 1/1837 that of a proton, equivalent to (9.109 534 ± 0.000 047) × 10-31 kg. Electrons are arranged in from one to seven shells around the nucleus; the...
Found on http://www.ktf-split.hr/periodni/en/abc/e.html

Electron

is a basic particle whose charge is -1 and whose mass is 1/1837 g/mol (amu).
Found on http://www.chemicalglossary.net/definition/695-ELECTRON

Electron

the sub-atomic particle, with a negative charge, that orbits the nucleus of an atom.
Found on http://www.chemicalglossary.net/definition/620-Electron

Electron

A negatively charged subatomic particle, of extremely low mass found in the space outside the nucleus of an atom.
Found on http://www.chemicalglossary.net/definition/640-Electron

Electron

An elementary negatively charged particle orbiting within an atom, the electrons are arranged in shells - and it is the outermost shell electrons which take part in bond formation.
Found on http://www.chemicalglossary.net/definition/679-Electron

Electron

One of the parts of the atom having a negative charge. Indivisible particle with a charge of -1.
Found on http://www.chemicalglossary.net/definition/713-Electron

electron

One of the parts of the atom having a negative charge. Indivisible particle with a charge of -1.
Found on http://www.shodor.org/UNChem/glossary.html

Electron

A negatively charged subatomic particle which circles the nucleus of the atom in a cloud. Most chemical reactions involve the making and breaking of bonds held together by the sharing of electrons
Found on http://www.encyclo.co.uk/local/20747

electron

One of the three fundamental particles* that make up atoms*. Electrons are by far the smallest in mass of the three fundamental particles. They have a negative charge of -1.6 × 10-19 C.
Found on http://www.gcse.com/glos.htm

Electron

E·lec'tron noun [ New Latin , from Greek 'h`lektron . See Electric .] Amber; also, the alloy of gold and silver, called electrum .
Found on http://www.encyclo.co.uk/webster/E/19
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