The unified atomic mass unit (symbol: u) or dalton (symbol: Da) is the standard unit that is used for indicating mass on an atomic or molecular scale (atomic mass).
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Non-SI unit of mass (equal to the atomic mass constant), defined as one twelfth of the mass of a carbon-12 atom in its ground state and used to express masses of ...
ORANGE BOOK DEFINITION IUPAC. Analytical Division. Compendium of Analytical Nomenclature (the “Orange Book”). Definitive Rules, 1979. Unified atomic mass unit
The atomic mass (m a) is the mass of an atomic particle, sub-atomic particle, or molecule. It is commonly expressed in unified atomic mass units (u) where by ...
unified atomic mass unit : Value: 1.660 539 040 x 10-27 kg : Standard uncertainty: 0.000 000 020 x 10-27 kg : Relative standard uncertainty: 1.2 x 10-8
Definition of “unified atomic mass unit” | The official Collins English Dictionary online. Comprehensive and authoritative, rely on Collins for up-to-date English ...
unit [u´nit] 1. a single thing; one segment of a whole that is made up of identical or similar segments. 2. a specifically defined amount of anything subject to ...
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, in chemistry and physics, one ...