Question

Define atomic and molecular masses​

Answer 1

Answer:

The atomic mass is the weighted average of the masses of all isotopes of an element. The molecular mass is the sum of the masses of the atoms in a molecule

Explanation:

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Answer 2

Answer:

Atomic mass:

the mass of an atom of a chemical element expressed in atomic mass units.

Molecular mass:

the sum of the atomic masses of all the atoms present in a molecule of a substance.

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