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atomic mass unit

   Also found in: Dictionary/thesaurus, Medical, Financial, Acronyms, Wikipedia, Hutchinson 0.10 sec.
atomic mass unit or amu, in chemistry and physics, unit defined as exactly 1-12 the mass of an atom of carbon-12, the isotope isotope (ī`sətōp)
..... Click the link for more information.  of carbon with six protons and six neutrons in its nucleus. One amu is equal to approximately 1.66 × 10−24 grams.
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Fractionation corrections were calculated from concurrent analyses of SRM 981 using the linear law, with the mass bias per atomic mass unit correction averaging 0.
Lead contamination in cocoa and cocoa products: isotopic evidence of ... by Flegal, A. Russell / Environmental Health Perspectives
But this element has an atomic mass that is more than 200 atomic mass Units (amu).
Name that element! by Bryner, Jeanna / Science World
2% per atomic mass unit (u) in the region of Ni and Cu (based on pure Fe and Cu measurements) and about 0.
Averaging of backscatter intensities in compounds by Westphal, Andrew J. / Journal of Research of the National Institute of Standards and Technology
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