Question

state the reference used at present for describing atomic mass​

Answer 1

Answer:

The atomic mass unit is abbreviated as amu. Atomic mass unit is defined as as mass unit equal to exactly one twelth (1/12 th) the mass of carbon-12 atom. Thus, the atomic masses of all elements have been found to an atom of Carbon-12.

Answer 2

Answer:

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Explanation:

The atomic mass unit is abbreviated as amu. Atomic mass unit is defined as as mass unit equal to exactly one twelth (1/12 th) the mass of carbon-12 atom. Thus, the atomic masses of all elements have been found to an atom of Carbon-12