A sample of niobium contains 2.50 micrograms of Nb-95.  Determine the activity of the sample in millicuries? [Half-life and atomic mass data can be found in the reference table linked in Question-0.] Half-life= 34.991 d Atomic Mass = 94.90683101 Answer:___ millicuries

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A: Time required for the activity of a sample of iodine-131 to fall to 5.57 percent of its original…

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Q: The half-life of Cs-131 is 30.2 years. How much time would it take for a sample to drop to 1.00% of…

A: * cs=3Half life=t12=30.2 yearsfrom this half life we can calculate , rate constant for this…

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Q: Be sure to answer all parts. A freshly isolated sample of 90y was found to have an activity of 9.7 x…

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Q: Be sure to answer all parts. A freshly isolated sample of 90Y was found to have an activity of 6.6 x…

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Q: Iodine-131 is administered orally in the form of Nal(aq) as a treatment for thyroid cancer. The…

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Q: The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 50 years if the…

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Q: link to access the section in your eText. Radium-223 decays with a half-life of 11.4 days. Part A…

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Q: A freshly isolated sample of 90Y was found to have an activity of 7.6 × 105 disintegrations per…

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Q: A freshly isolated sample of 0Y was found to have an activity of 8.9 × 105 disintegrations per…

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A: Given, A freshly isolated sample of 90Y was found to have an activity of 2.5 ×105 disintegrations…

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Q: The half-life of strontium−90 is 29.1 years. Calculate the radioactivity in millicuries of 11.5 mg…

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Q: "ghment-take The half-life of iodine-131 is 8.04 days. How much time is required for the amount of a…

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Q: Be sure to answer all parts. A freshly isolated sample of 90Y was found to have an activity of 2.9 x…

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Q: What is the half-life of magnesium-20 if 1.24 seconds are required for the activity of a sample of…

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.