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6 votes
6 votes
Define mass number in your own words​

User Dina Diagovic
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2 Answers

11 votes
11 votes

Answer:

mass number also called nucleon number and it's the total number of neutron and proton in an atomic nucleus.

User NrNazifi
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19 votes
19 votes

Answer:

The total number of protons and neutrons in the nucleus of an atom is called mass number.

User Kzfid
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