Question

what is atomic mass

what is IUPAC
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Answer 1

Answer:

The mass of an atom of a particular chemical substance.

IUPAC -The International Union of Pure and Applied Chemistry is an international federation of National Adhering Organizations that represents chemists in individual countries

Answer 2

Answer:

atomic mass:

the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.

Explanation:

International Union of Pure and Applied Chemistry

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