Chemistry, 03.06.2021 20:00 ellieflores8400
NEED HELP ASAP! Cesium-131 is the latest tool of nuclear medicine. It is used to treat malignant tumors by implanting Cs-131 directly into the tumor site. Its first-order half-life is 9.7 days. If a patient is implanted with 20.0 mg of Cs-131, how long will it take for 22% of the isotope to remain in his system?
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