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What is the mass of an atom that has 4 protons, 5 neutrons, and 4 electrons?
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2 votes
What is the mass of an atom that has 4 protons, 5 neutrons, and 4 electrons?

User GenDemo
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2 Answers

3 votes
the answer would be 9
User Astraport
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4 votes
To get the mass, you would add the 4 protons and 5 neutrons so it would be 9.
(The electrons weigh practically nothing so you just ignore them.)
User Deepanjan Nag
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