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relative atomic mass


from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Ratio of the atomic mass of one atom of an isotope to 1/12 (one twelfth) the mass of a Carbon-12 atom.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

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


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