- isotopic (atomic )weight
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изотопная атомная масса, атомная масса изотопа
Англо-русский словарь технических терминов. 2005.
isotopic (atomic )weight
Смотреть что такое "isotopic (atomic )weight" в других словарях:
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 — 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
List of elements by atomic weight — This is a list of chemical elements, sorted by standard atomic weight (most stable isotope for artificial elements) and color coded according to type of element. Each element s atomic number, name, element symbol, and group and period numbers on… … Wikipedia
Atomic mass — The atomic mass (ma) is the mass of an atom, most often expressed in unified atomic mass units. [GoldBookRef|file=A00496|title=atomic mass] The atomic mass may be considered to be the total mass of protons, neutrons and electrons in a single atom … Wikipedia
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
Isotopic — Referring to an isotope, a form of a chemical element with the same atomic number as another element but having a different atomic mass. From the Greek iso , equal, the same + topos , place. Isotopes are used in a number of medical tests. * * *… … Medical dictionary
isotopic number — the number which when added to twice the atomic number gives the atomic weight … Medical dictionary
isotopic — adj. of an isotope, pertaining to a form of a chemical element which has the same atomic number as the other forms but a different atomic weight (Chemistry) … English contemporary dictionary
Molar mass — Formula mass redirects here. It is not to be confused with Mass formula. Molar mass, symbol M,[1] is a physical property of a given substance (chemical element or chemical compound), namely its mass per amount of substance.[2] The base SI unit… … Wikipedia
Molecular mass — This article is about the mass of a single molecule. For the mass of a substance commonly used in basic stoichiometric calculations, see Molar mass. Assuming hydrogen and oxygen are standard weights in this image (as opposed to deuterium oxide)… … Wikipedia
chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… … Universalium
