What information does the atomic mass of an element provide

The atomic mass tells us about the number of protons and neutrons in an atom.

Explanation:

There are 3 subatomic particles present in an atom. They are: protons, electrons and neutrons.

Atomic number is defined as the number of protons or electrons that are present in a neutral atom. It is represented by the symbol 'Z'

Atomic number = number of protons = number of electrons

Atomic mass is defined as the sum of number of protons and neutrons that are present in an atom.  It is represented by the symbol 'A'

Atomic mass = Number of protons + Number of neutrons

Hence, the atomic mass tells us about the number of protons and neutrons in an atom.

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