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7. If an atom had 10 protons, 8 electrons and 9 neutrons, what would the mass number be?

7. If an atom had 10 protons, 8 electrons and 9 neutrons, what would the mass number be?
asked 141k views
2 votes
7. If an atom had 10 protons, 8 electrons and 9 neutrons, what would the mass number be?

asked
User SharpLu
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8.1k points

1 Answer

5 votes

Answer:

19

Step-by-step explanation:

10 + 9 protons plus neutrons

answered
User Ybendana
by
8.2k points
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