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en.wikipedia.org/wiki/Unified_atomic_mass_unit

The unified atomic mass unit (symbol: u) or dalton (symbol: Da) is a standard unit of mass that quantifies mass on an atomic or molecular scale (atomic mass). One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol.

whatis.techtarget.com/definition/atomic-mass-unit-AMU-or-amu

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  ...

www.dictionary.com/browse/atomic-mass-unit

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  ...

www.thoughtco.com/definition-of-atomic-mass-unit-amu-604366

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:.

study.com/academy/lesson/atomic-mass-unit-amu-definition-standard-conversion.html

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 ...

www.thefreedictionary.com/atomic+mass+unit

(Units) a unit of mass used to express atomic and molecular weights that is equal to one twelfth of the mass of an atom of carbon-12. It is equivalent to 1.66 ...

medical-dictionary.thefreedictionary.com/atomic+mass+unit

Looking for online definition of atomic mass unit in the Medical Dictionary? atomic ... atomic mass unit (u) (amu) the unit of mass equal to ¹⁄₁₂ the mass of the ...

sizes.com/units/atomic-mass-unit.htm

Nov 21, 2010 ... Since 1961, by definition the unified atomic mass unit is equal to one-twelfth of the mass of the nucleus of a carbon-12 atom. Referring to the ...

www.merriam-webster.com/dictionary/atomic%20mass%20unit

Define atomic mass unit: 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…

en.oxforddictionaries.com/definition/atomic_mass_unit

A unit of mass used to express atomic and molecular weights, equal to one twelfth of the mass of an atom of carbon-12. Example sentences. 'For example ...