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Mr. Albedo stumbled upon an unknown material in an abandoned laboratory. He believes that this material is radioactive. He brought it to his laboratory at Dragonspine for identification. Then, he obtained a sample weighing 10.5 g. After 6 hours, the weight of the sample decreased to 0.171 g. 1. Using the data gathered by Mr. Albedo, calculate the half-life (in hours) of the radioactive sample. Express answer in 3 SF. 2. From the given list below, determine the possible identity of the unknown sample. Isotope Half-life Ra-224 3.66 days Pb-212 10.6 hours Bi-212 60.6 minutes TI-208 3.05 minutes 3. Mr. Albedo found out that the sample was emitting alpha particles. Write the nuclear reaction involved in this process.

Mr. Albedo stumbled upon an unknown material in an abandoned laboratory. He believes that this material is radioactive. He brought it to his laboratory at Dragonspine for identification. Then, he obtained a sample weighing 10.5 g. After 6 hours, the weight of the sample decreased to 0.171 g. 1. Using the data gathered by Mr. Albedo, calculate the half-life (in hours) of the radioactive sample. Express answer in 3 SF. 2. From the given list below, determine the possible identity of the unknown sample. Isotope Half-life Ra-224 3.66 days Pb-212 10.6 hours Bi-212 60.6 minutes TI-208 3.05 minutes 3. Mr. Albedo found out that the sample was emitting alpha particles. Write the nuclear reaction involved in this process.

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter25: Nuclear Chemistry
Section: Chapter Questions
Problem 50PS
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PROBLEM SOLVING 2 Mr. Albedo stumbled upon an unknown material in an abandoned laboratory. He believes that this material is radioactive. He brought it to his laboratory at Dragonspine for identification. Then, he obtained a sample weighing 10.5 g. After 6 hours, the weight of the sample decreased to 0.171 g. 1. Using the data gathered by Mr. Albedo, calculate the half-life (in hours) of the radioactive sample. Express answer in 3 SF. 2. From the given list below, determine the possible identity of the unknown sample. Isotope Half-life Ra-224 3.66 days Pb-212 10.6 hours Bi-212 60.6 minutes TI-208 3.05minutes 3. Mr. Albedo found out that the sample was emitting alpha particles. Write the nuclear reaction involved in this process.
Transcribed Image Text:PROBLEM SOLVING 2 Mr. Albedo stumbled upon an unknown material in an abandoned laboratory. He believes that this material is radioactive. He brought it to his laboratory at Dragonspine for identification. Then, he obtained a sample weighing 10.5 g. After 6 hours, the weight of the sample decreased to 0.171 g. 1. Using the data gathered by Mr. Albedo, calculate the half-life (in hours) of the radioactive sample. Express answer in 3 SF. 2. From the given list below, determine the possible identity of the unknown sample. Isotope Half-life Ra-224 3.66 days Pb-212 10.6 hours Bi-212 60.6 minutes TI-208 3.05minutes 3. Mr. Albedo found out that the sample was emitting alpha particles. Write the nuclear reaction involved in this process.
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