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Suppose a laboratory has a 31 g sample of polonium210. The halflife of polonium210 is about 138 days. How many halflives of polonium210 occur in 966 days? How much polonium is in the sample 966 days later? 
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Suppose a laboratory has a 31 g sample of polonium210. The halflife of polonium210 is about 138 days. How many halflives of polonium210 occur in 966 days? How much polonium is in the sample 966 days later? 
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Suppose a laboratory has a 38 g sample of polonium210. The halflife of polonium210 is about 138 days. How many halflives of polonium210 occur in 1104 days? How much polonium is in the sample 1104 days later? 
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Consider that the halflife of Polonium210 is 140 days.What approximate daily percentage of decay does Polonium210 demonstrate?% (Round to two decimals.)(Hint: use the Rule of 70 backwards by dividing by the halflife period 
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Suppose a laboratory has a 26 g sample of polonium210. The halflife of polonium210 is about 138 days.? 
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How long will it take for a 1 g sample of Polonium 210 to lose all but 1/28 of its radioactivity if the halflife is 140 d? 
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How long will it take for a 1 g sample of Polonium 210 to lose all but 1/28 of its radioactivity if the halflife is 140 d? 
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The halflife of polonium is 139 days, but your sample will not be useful to you after 95 % of the radioactive nuclei present on the day the sample arrives has disintegrated. For about how many days after the sample arrives will 
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Static charge can interfere with the production of plastic products by attracting dust and dirt. to reduce it, manufacturers expose the area to polonium210, which has a halflife of 138 days. How much of a 25.0g sample will 
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Po210 Ia an alpha emitter with a halflife of 138 days. how many grams of Po210 remain after 552 days if the sample initially contained 5.80g of Po210?