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

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter3: Using Spreadsheets In Analytical Chemistry

Section: Chapter Questions

Problem 3.4QAP

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