In 1898, Pierre and Marie Curie isolated about 10 mg of radium-226 from eight tons of uranium
Question:
(a) How much of the radium would remain in the year 2109?
(b) How many radium nuclei would have decayed during this time?
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a From 1898 to 2109 is 211 y Table 291 gives the halflife of Ra226 as 1600 y Since th...View the full answer
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