atomic mass :

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atomic mass


  • n  (chemistry) the mass of an atom of a chemical element expressed in atomic mass units
News & Articles

  • Big Discovery: Tiny Electron's Mass More Precisely Measured
    Scientists have made the most precise measurement yet of the electron's atomic mass. "It is a major technical improvement," said Edmund Myers, a physicist at Florida State University, who wrote an accompanying News & Views article today (Feb. 19) in the journal Nature, where the new measurement is detailed. The new measurement could one day be used in experiments to test the Standard Model, the ...
    Feb. 19, 2014 - LiveScience.com via Yahoo! News

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