Question

define atomic mass ​

Answer 1

An atomic mass (symbol: ma) is the mass of a single atom of a chemical element. It includes the masses of the 3 subatomic particles that make up an atom: protons, neutrons and electrons. Atomic mass can be expressed in grams. However, because each atom has a very small mass, this is not very helpful.

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Answer 2

Answer:

The mass of an isotope of an element measured in unit formerly based on the mass of one hydrogen atom taken as a unit or on 1/16 (0.0625) the mass of one oxygen atom but after 1961 based on 1/12 (0.0833) the mass of the carbon- 12 atom.

Explanation:

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