the standared unit for the measurment of the atomic mass
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Answer:
daltons
Atomic weight is measured in atomic mass units (amu), also called daltons. See below for a list of chemical elements and their atomic weights.
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Atomic weight
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WRITTEN BY
Edward Wichers See All Contributors
Associate Director, National Bureau of Standards, U.S. Department of Commerce, Washington, D.C., 1958–62; Chief, Division of Chemistry, 1948–58. Author of papers on chemical reagents, pure substances,...
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Atomic weight, also called relative atomic mass, ratio of the average mass of a chemical element’s atoms to some standard. Since 1961 the standard unit of atomic mass has been one-twelfth the mass of an atom of the isotope carbon-12. An isotope is one of two or more species of atoms of the same chemical element that have different atomic mass numbers (protons + neutrons).