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Mathematics, 26.09.2019 17:30 nicole5918
The half-life of rubidium-89 is 15 minutes. if the initial mass of the isotope is 250 grams, how many grams will be left after 100 minutes?
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The half-life of rubidium-89 is 15 minutes. if the initial mass of the isotope is 250 grams, how man...
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