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atomic weight unit

См. также в других словарях:

  • atomic weight unit — atomic mass u …   Medical dictionary

  • atomic mass unit — n a unit of mass for expressing masses of atoms, molecules, or nuclear particles equal to 1/12 the mass of a single atom of the most abundant carbon isotope 12C called also dalton * * * (u) (amu) the unit mass equal to the mass of the nuclide of… …   Medical dictionary

  • Atomic mass unit — unified atomic mass unit Unit system: SI recognized unit Unit of... mass Symbol: u Unit conversions 1 u in... is equal to...    dalton …   Wikipedia

  • Atomic weight — (symbol: A sub|r) is a dimensionless physical quantity, the ratio of the average mass of atoms of an element (from a given source) to 1/12 of the mass of an atom of carbon 12.cite journal | author = International Union of Pure and Applied… …   Wikipedia

  • Atomic weight — Weight Weight, n. [OE. weght, wight, AS. gewiht; akin to D. gewigt, G. gewicht, Icel. v[ae]tt, Sw. vigt, Dan. v[ae]gt. See {Weigh}, v. t.] [1913 Webster] 1. The quality of being heavy; that property of bodies by which they tend toward the center… …   The Collaborative International Dictionary of English

  • atomic weight — Chem. the average weight of an atom of an element, formerly based on the weight of one hydrogen atom taken as a unit or on 1/16 the weight of an oxygen atom, but after 1961 based on 1/12 the weight of the carbon 12 atom. Abbr.: at. wt. [1820 30]… …   Universalium

  • weight unit — noun 1. a decimal unit of weight based on the gram • Syn: ↑metric weight unit • Hypernyms: ↑mass unit, ↑metric unit, ↑metric • Hyponyms: ↑microgram, ↑ …   Useful english dictionary

  • atomic weight — weight of one atom of a particular element (one unit of weight is equal to 1/12 of the weight of a carbon 12 atom) …   English contemporary dictionary

  • ATOMIC WEIGHT —    the weight of an atom of any body compared with that of hydrogen, the unit …   The Nuttall Encyclopaedia

  • metric weight unit — noun a decimal unit of weight based on the gram • Syn: ↑weight unit • Hypernyms: ↑mass unit, ↑metric unit, ↑metric • Hyponyms: ↑microgram, ↑mcg, ↑ …   Useful english dictionary

  • gram-atomic weight — noun the quantity of an element whose weight in grams is numerically equal to the atomic weight of the element • Syn: ↑gram atom • Hypernyms: ↑metric weight unit, ↑weight unit * * * noun see gram atom * * * gram atˈom or …   Useful english dictionary

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