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Proton
One of the two basic elementary particles found the atomic nucleus, the other being the neutron. It has a positive charge equal and opposite that of the electron, and a mass similar to the neutron. Protons have a mass of 1.007276 daltons, or 1.6726 = 10-27 kg.
 
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Appears in Topics
Physics
 
Development Notes
Text by M. Alan Kazlev
Initially published on 19 December 2001.

 
 
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