What is atomic mass?

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Dr Ashok Gopalakrishnan

B.Tech, Spoken English, EEC, MATLAB, CET Coaching Tutor with 20 years of experience

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.
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Tutor

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.
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Don't want to over express myself, just join and feel the experience.

Atomic mass is the average mass of atoms of naturally-occurring element.
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I KNOW HOW TO EXPLAIN.

Atomic mass is the mass of any atom of any element, expressed generally in unified atomic mass unit.
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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.
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All Subjects Guidance upto std 10.

At is the average mass of an atom. This is approximate to the no. of protons or neutrons in the atom and is expressed in amu.
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M. Tech. Electronics Engineering

atomic mass number= number of electronics + number of neutrons
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The total weight constituted by proton and neutron together in an atom constitutes atomic mass
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Trainer

Number of protons + Neutrons. Many people say as number of electrons + neutrons, but this is not perfect as an atom might gain/lose electron but the number of protons is always constant
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