Look up: Electron

1. 
   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/di
   
   
2. 
   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/glo
   
   
3. 
   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/gl
   
   
4. 
   Electron
   In chemistry, an electron is an atomic particle carrying a unit charge of negative electricity, having a mass of 1/1837 of that of a proton.
   Found on http://www.encyclo.co.uk/nol.php
   
   
5. 
   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/g
   
   
6. 
   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/glossa
   
   
7. 
   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_atoz
   
   
8. 
   electron
   [n] - an elementary particle with negative charge
   Found on http://www.webdictionary.co.uk/definitio
   
   
9. 
   Electron
   Particle in an atom carrying a negative charge.
   Found on http://www.anson.co.uk/oilfield_glossary
   
   
10. 
    Electron
    An atomic particle that carries a negative charge. It orbits the nucleus of an atom.
    Found on http://www.delscope.demon.co.uk/astronom
    
    
11. 
    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.shponline.co.uk/glossary.asp?
    
    
12. 
    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/glossary-vacuumt
    
    
13. 
    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/sour
    
    
14. 
    Electron
    A subatomic particle having a mass of 0.00054858 amu and a charge of 1-
    Found on http://www.allchemicals.info/index/actio
    
    
15. 
    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.ch.ic.ac.uk/vchemlib/mol/glos
    
    
16. 
    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
    
    
17. 
    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 maximum numbe...
    Found on http://www.ktf-split.hr/periodni/en/abc/
    
    
18. 
    Electron
    is a basic particle whose charge is -1 and whose mass is 1/1837 g/mol (amu).
    Found on http://www.chemicalglossary.net/definiti
    
    
19. 
    Electron
    the sub-atomic particle, with a negative charge, that orbits the nucleus of an atom.
    Found on http://www.chemicalglossary.net/definiti
    
    
20. 
    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/definiti
    
    
21. 
    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/definiti
    
    
22. 
    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/definiti
    
    
23. 
    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.ht
    
    
24. 
    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.fire.org.uk/glossary.htm
    
    
25. 
    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