asked 204k views
4 votes
Define mass number in your own words​

2 Answers

1 vote

Answer:

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

answered
User Vinit Sarvade
by
8.2k points
6 votes

Answer:

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

answered
User GoldieLocks
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8.3k points

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