wackydenny99 wackydenny99

20-05-2023
Chemistry

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The half-life of 221 Fr is 5 min. If the radioactivity of a sample of 221Fr is 0.32 pCi, what would the activity of this sample be after 15 min considering 1st
order reaction? The Curie (Ci) is just a unit of radioactivity (like a concentration!)

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