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What is the mass number of an atom with 5 protons and 7 neurons?
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What is the mass number of an atom with 5 protons and 7 neurons?

User Florian Sowade
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1 Answer

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Answer:

12

Step-by-step explanation:

The mass number of an atom with five protons and seven neutrons is 12. In the case of this particular atom, it would be an atom of the boron-12 isotope.

User Anita Jayana
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