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atomic mass unit

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atomic mass unit

Unit of mass that is used to measure the relative mass of atoms and molecules. It is equal to one-twelfth of the mass of a carbon-12 atom, which is approximately the mass of a proton or 1.66 × 10−27 kg. The relative atomic mass of an atom has no units; thus oxygen-16 has an atomic mass of 16 daltons but a relative atomic mass of 16.



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? Mentioned in ? References in periodicals archive
 
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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