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According to the International Union of Pure and Applied Chemistry (IUPAC), 1 atomic mass unit is defined as 1/12 the mass of carbon-12.


Only protons and neutrons significantly contribute to atomic mass. Each proton and each neutron adds a mass of 1 atomic mass unit (AMU).


One an amu is 121​ of the mass of one carbon-12 atom. It is equal to Na​1​. =6.022×10231​=1.66×10−24g. verified_toppr. Answer verified by Toppr. Upvote (0).


It is expressed as a multiple of one-twelfth the mass of the carbon-12 atom, ... In this scale, 1 atomic mass unit (amu) corresponds to 1.66 x 10^−24 gram.


Both your answers are same. 1.66×10−27=(6.02×1026)−1. Hope that helps...


1 U nucleus. 6.022 1023 U nuclei mole of U. = 1.08 1013. J mole of U. The mass of a single atom of an element [amu] is numerically equal to the mass [g] of ...


Atomic mass unit definition, 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 and subatomic ...


One atomic mass unit (amu): the mass exactly equal to one-twelfth the mass of one carbon-12 atom that has six protons and six neutrons. 1 atom of carbon-12 = 12 ...


12 AMU because elements exist as a variety of isotopes. ... 1 Atom. Average Mass of. 100 Atoms. C. 12.01 amu. 1,201 amu. H. 1.0079 amu. 100.79 amu.


On the periodic table the mass of carbon is reported as 12.01 amu. This is the average ... What is the relative mass of 1 C atom as compared to 1 H atom?


In imprecise terms, one AMU is the average of the proton rest mass and the neutron rest mass. This is approximately 1.67377 x 10 -27 kilogram (kg), or 1.67377 x ...