Question

what is the difference between atomic mass and mass no.?

Answer 1

Hey mate....here's your answer-
Atomic mass is also known as atomic weight. Atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that element's isotopes. The mass number is a count of the total number of protons and neutrons in an atom's nucleus.
hope it helps you.......

Answer 2

mass number by definition, is the total number of nucleons. it is a natural number
and atomic mass is the average mass of the element by percentage of its different isotopes. it is mostly a rational number.

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