After long effort, in 1902 Marie and Pierre Curie succeeded in separating from uranium ore the first

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After long effort, in 1902 Marie and Pierre Curie succeeded in separating from uranium ore the first substantial quantity of radium, one decigram of pure RaCl2. The radium was the radioactive isotope "226Ra which has a half-life of 1600 V.

(a) How many radium nuclei had the Curies isolated?

(b) What was the decay rate of their sample, in disintegrations per second?

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Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

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Question Posted: Feb 19, 2011 04:27 AM

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After long effort, in 1902 Marie and Pierre Curie succeeded in separating from uranium ore the first

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a We assume that the chlorine in the sample had the nat...View the full answer

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