what is meant by 'united atomic mass' ?
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Explanation:
The Unified Atomic Mass Unit or Dalton is a standard unit of mass that quantities mass on an atomic or molecular scale.
One unified atomic mass unit is approximately equivalent to 1g/mol.
It is denoted by a symbol: 1u or Da.
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a unit of mass used to expressatomic and molecular weights that is equal to one twelfth of the mass of anatom of carbon-12. It is equivalent to 1.66 × 10 –27 kgAbbreviation: amu Also called: unified atomic mass unit, dalton.
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