Give scientific reasons - Atomic mass number is a whole number.
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atomic mass tells about the maas of an atom.Since everything has a mass even an atom so atomic mass is always a whole number ie starting from 0.It can never be negative.
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Answer:
The mass number of any element represents the total number of protons( positively charged particles) and neutrons( neutral particles)together present in the nucleus of the given atom.
Since the number of protons and neutrons in an atom can never be in fractions or decimals, mass numbers are always found in whole numbers.
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