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Physics (Radiation) Questions
Lets start with this.
140-Ba decays to 140-La with a half-life of 12.8 days and the 140-La decays to stable 140-Ce with a half-life of 40.5 hours. A radiochemist, after precipitating 140-Ba, wishes to wait until she has a maximum amount of 140-La before separating the 140-La from the 140Ba. How long should she wait? How much 140-La will she collect?
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