Question

Explain The need of the term average atomic mass.
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Answer 1

Answer:

To know about the abundance of the isotopes of an element. Average atomic mass is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

Answer 2

Answer:

it is basically atomic mass of element having isotopes

average atomic mass =

[abundance of ist isotope×atomic mass ]+ [abundance of 2nd isotope× atomic mass]÷sum of abundance