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An atom has 10 protons and 10 neutrons, what is the elements mass number?

An atom has 10 protons and 10 neutrons, what is the elements mass number?
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An atom has 10 protons and 10 neutrons, what is the elements mass number?

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User Jabal Logian
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1 Answer

5 votes
Answer: 21



Explanation:
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User Mullefa
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