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Enter the mass number for the isotope used in brain scans Express your answer as an integer
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The isotope used in brain scans is technetium-99m, which has a mass number of 99.
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Enter the symbol for the isotope used in brain scans Express your answer as an isotope.
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1. Consider an isotope with 18 protons, a charge of +2, and a mass number of 38. Answer the following questions:
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Consider an isotope with 38 electrons, an atomic number of 39, and a mass number of 86. Answer the following questions:
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Consider the isotope arsenic-76
How many protons are in an atom of this isotope? 33 What is the mass number of this isotope? 76
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