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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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What information is needed to calculate the average atomic mass of an element?
A. The relative abundance of its isotope** B. The
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A rare isotope of a nuclear material is very unstable, decaying at a rate of 13% each second. Find how much isotope
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