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Alenkinab [10]
2 years ago
5

The mass number of an atom is:

Biology
2 answers:
n200080 [17]2 years ago
8 0

Answer:

The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.

Explanation:

AveGali [126]2 years ago
7 0

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