Look up: Neutron

1. 
   Neutron
   A neutral subatomic particle having a mass of 1.0087 amu.
   Found on http://home.nas.net/~dbc/cic_hamilton/di
   
   
2. 
   Neutron
   One of the basic particles which make up an atom. A neutron and a proton have about the same weight, but the neutron has no electrical charge. In our diagrams, a neutron is represented by this:
   Found on http://ie.lbl.gov/education/glossary/glo
   
   
3. 
   Neutron
   Why atomic weights are complicated. Each element has a certain number of protons in its nucleus, which defins what element it is (e.g,, 92 for Uranium, 2 for Helium, 109 for Meitnerium). To keep the positively charged protons from flying apart through electrostatic repulsion, they are bound together by the 'strong force' which is a veyr powerful force operating over very short distances between protons and neutrons. A certain number of neutrons gives optimal stability to a nucleus - too many or ...
   Found on http://www.kcpc.usyd.edu.au/discovery/gl
   
   
4. 
   Neutron
   The neutron is a subatomic uncharged particle, of slightly greater mass than a proton and forming a constituent part of the nucleus of all atoms except hydrogen atoms, which consist of a single proton. It may be considered as the equivalent of one proton and one electron.
   Found on http://www.encyclo.co.uk/nol.php
   
   
5. 
   Neutron
   An electrically neutral elementary particle. A neutron is 1839 times heavier than an electron.
   Found on http://hesperia.gsfc.nasa.gov/sftheory/g
   
   
6. 
   Neutron
   The neutron is a constituent of the Nucleus of an Atom and has an Atomic Mass unit of 1 (identical mass to a Proton ). Unlike protons, the neutron does not carry an electrical charge. Its electrical neutrality allows it to take part in many types of nuclear reactions because it is not deflected by the positive charge of the protons. Neutrons are not themselves Ionising , but the by-products of their interactions are (in simple terms their interactions take the form of collisions with other sub-atomic particles where energy is transferred).
   Found on http://www.ionactive.co.uk/glossary_atoz
   
   
7. 
   neutron
   [n] - an elementary particle with 0 charge and mass about equal to a proton
   Found on http://www.webdictionary.co.uk/definitio
   
   
8. 
   Neutron
   An atomic particle with no charge and a mass almost equal to a proton.
   Found on http://www.delscope.demon.co.uk/astronom
   
   
9. 
   Neutron
   An elementary particle with unit atomic mass approximately and no electric charge.
   Found on http://www.shponline.co.uk/glossary.asp?
   
   
10. 
    Neutron
    A sub-atomic particle, within the nucleus of an atom,which has unit mass and zero charge. A member of thebaryon and hadron familiesof elementary particles. It was discovered by Chadwick in 1932.Protons and neutrons comprise atomic nuclei and they are both classed as nucleons.Click on an item to paste into clipboard or use clipboard symbol at end to...
    Found on http://www.diracdelta.co.uk/science/sour
    
    
11. 
    Neutron
    An uncharged elementary particle found in the nucleus of every atom except hydrogen. Solitary mobile neutrons travelling at various speeds originate from fission reactions. Slow (thermal) neutrons can in turn readily cause fission in nuclei of 'fissile' isotopes, e.g. U-235, Pu-239, U-233; and fast neutrons can cause fission in nuclei of 'fertile' isotopes such as U-238, Pu-239. Sometimes atomic nuclei simply capture neutrons
    Found on http://www.world-nuclear.org/info/inf51.
    
    
12. 
    Neutron
    A neutral subatomic particle having a mass of 1.0087 amu.
    Found on http://www.allchemicals.info/index/actio
    
    
13. 
    Neutron
    One of the three fundamental particles which form atoms, the neutron has the mass of a proton but no electrical charge. Neutrons are emitted when large atomic nuclei are bombarded with alpha particles.
    Found on http://www.ch.ic.ac.uk/vchemlib/mol/glos
    
    
14. 
    neutron
    (n, ¹₀n) Compare with proton and electron. An elementary particle found the atomic nucleus of all stable atoms except the hydrogen-1 atom. Neutrons have no charge and have a mass of 1.008665 daltons.
    Found on http://antoine.frostburg.edu/chem/senese
    
    
15. 
    neutron
    Neutron is an elementary particle on spin 1/2 and zero charge. The free neutron has a mean lifetime of 887 seconds. Neutrons and protons, which are collectively called nucleons, are the constituents of the nucleus.
    Found on http://www.ktf-split.hr/periodni/en/abc/
    
    
16. 
    Neutron
    is a basic particle whose charge is 0 and whose mass is 1 g/mol (amu).
    Found on http://www.chemicalglossary.net/definiti
    
    
17. 
    Neutron
    an uncharged sub-atomic particle, with a mass nearly equal to that of a proton. Present in the nucleus of all atoms except hydrogen.
    Found on http://www.chemicalglossary.net/definiti
    
    
18. 
    Neutron
    Electrically neutral subatomic particle found in the nucleus.
    Found on http://www.chemicalglossary.net/definiti
    
    
19. 
    Neutron
    One of the three fundamental particles which form atoms, the neutron has the mass of a proton but no electrical charge. Neutrons are emitted when large atomic nuclei are bombarded with alpha particles.
    Found on http://www.chemicalglossary.net/definiti
    
    
20. 
    neutron
    A particle found in the nucleus of an atom. It is almost identical in mass to a proton, but carries no electric charge.
    Found on http://www.shodor.org/UNChem/glossary.ht
    
    
21. 
    neutron
    One of the three fundamental particles* that make up atoms*. Neutrons are the largest in mass of the three fundamental particles. They have no electrical charge.
    Found on http://www.gcse.com/glos.htm
    
    
22. 
    Neutron
    An uncharged elementary particle found in the nucleus of every atom except hydrogen. Solitary mobile neutrons travelling at various speeds originate from fission reactions. Slow (thermal) neutrons can in turn readily cause fission in nuclei of 'fissile' isotopes, e.g. U-235, Pu-239, U-233; and fast neutrons can cause fission in nuclei of 'fertile' ...
    Found on http://www.energy-choices.com/index.php?
    
    
23. 
    Neutron
    An uncharged subatomic elementary particle. Neutrons are found in the nucleus of every atom except hydrogen. Solitary mobile neutrons travelling at various speeds originate from fission reactions. Slow neutrons can in turn readily cause fission in atoms of some isotopes, e.g. U-235 and fast neutrons can readily cause fission in atoms of others, e.g...
    Found on http://www.theiet.org/factfiles/energy/n
    
    
24. 
    neutron
    electrically neutral elementary particle which enters into the formation of the nucleus Category: Physics
    Found on http://www.mijnwoordenboek.nl/definition
    
    
25. 
    Neutron
    An uncharged particle found in the nucleus of every atom except that of hydrogen.
    Found on http://www.neo.ne.gov/statshtml/glossary