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An atom has a mass number of 24 and 13 neutrons. What is the atomic number of this atom?
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An atom has a mass number of 24 and 13 neutrons. What is the atomic number of this atom?

User Akshar Raaj
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the atomic number would be 11. since there are 13 neutrons and the mass number is 24, the number of protons must be 11. This is because the atomic mass (24) is the added amount of protons and neutrons in the atom.
User Tony Gutierrez
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