Archive for July 25th, 2008

For 1.4 mole of the radioactive isotope molybdenum-99, half-life = 67 hours, how many disintegrations?

Friday, July 25th, 2008
bloake asked:


For 1.4 mole of the radioactive isotope molybdenum-99, half-life = 67 hours, how many disintegrations have occurred after 17 minutes?

Blackberry Curve

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