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Atomic mass unit


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). One unified atomic mass unit is a...

What is atomic mass unit (AMU or amu)? - Definition from WhatIs.com


An atomic mass unit (symbolized AMU or amu) is defined as precisely 1/12 the mass ... The mass of an atom in AMU is roughly equal to the sum of the number of  ...

IUPAC Gold Book - unified atomic mass unit


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 ...

Atomic Mass Unit - AMU Chemistry Definition - About.com


May 4, 2016 ... This is the chemistry definition of an atomic mass unit or amu and how much an amu is in kilograms ... One unified atomic mass unit is equal to:.

What is Atomic Mass? - Definition & Examples - Video & Lesson ...


Atomic mass units, or amu, are also used to measure atomic masses, and they are equal to daltons. The atomic mass of an atom will change depending on its ...

Relation between Atomic Mass Unit and Mev | Tutorvista.com


The unit in which atomic and nuclear masses are measured is called atomic mass unit (a.m.u). ... m.u (called mass defect) releases an energy equal to 931 Mev.

Atomic Mass Unit (AMU): Definition, Standard & Conversion | Study ...


According to the Royal Society of Chemistry, one atomic mass unit is equal to 1.66 x 10^-27 kg. Where did this number come from? While the history of atomic ...

atomic mass unit - Infoplease


atomic mass unit or amu, in chemistry and physics, unit defined as exactly 1/12 the mass of an atom ... One amu is equal to approximately 1.66 × 10 <sup>- 24</sup> grams.

What is a weight unit "atomic mass unit" (u)


The atomic mass unit (u) definition and its relation to other weight ... One atomic mass unit (1u) is defined as one twelfeth (1/12) of the mass of an atom of carbon- 12. ... CaribSea, Freshwater, Super Naturals, Rio Grande density is equal to ...

Atomic weight and atomic mass | Introduction to the atom | Khan ...


The difference between atomic weight and atomic mass in chemistry, and how it compares to the physics definitions of weight and mass.

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Atomic mass unit - Dictionary.com


Atomic mass unit definition, Also called dalton. a unit of mass, equal to 1/12 ( 0.0833) the mass of the carbon-12 atom and used to express the mass of atomic  ...

Atomic mass unit - The Free Dictionary


Define atomic mass unit. atomic mass unit synonyms, atomic mass unit ... Abbr. amu A unit of mass equal to 1/12 the mass of the most abundant isotope of ...

Atomic Mass Unit - Merriam-Webster


a unit of mass for expressing masses of atoms, molecules, or nuclear particles equal to <sup>1</sup>⁄12 the mass of a single atom of the most abundant carbon isotope <sup>12</sup>C  ...