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A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 19.00 µmol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionuclide in each sample to decrease to 1/8 of the initial amount. sample A B C D symbol 67 179 73 11 6 177 71 radionuclide Cu Ta с Lu half-life 62.0 hours 2. years 20. minutes 7.0 days initial radioactivity (choose one) (choose one) O (choose one) (choose one) time for amount of radionuclide to decrease to 1/8 of initial amount hours years minutes days

A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 19.00 µmol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionuclide in each sample to decrease to 1/8 of the initial amount. sample A B C D symbol 67 179 73 11 6 177 71 radionuclide Cu Ta с Lu half-life 62.0 hours 2. years 20. minutes 7.0 days initial radioactivity (choose one) (choose one) O (choose one) (choose one) time for amount of radionuclide to decrease to 1/8 of initial amount hours years minutes days

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter18: Nuclear Chemistry
Section: Chapter Questions
Problem 18.ACP
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A medical technician is working with four samples of radionuclides listed in the table below. Initially, each sample contains 19.00 μmol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionuclide in each sample to decrease to 1/8 of the initial amount. | Sample | Radionuclide Symbol | Half-life | Initial Radioactivity | Time for Amount of Radionuclide to Decrease to 1/8 of Initial Amount | |--------|----------------------|-------------|-----------------------|---------------------------------------------------------------| | A | \( \text{Cu} \, \) \(^ {67}_{29} \) | 62.0 hours | (choose one) | \_\_\_ hours | | B | \( \text{Ta} \, \) \(^ {179}_{73} \) | 2. years | (choose one) | \_\_\_ years | | C | \( \text{C} \, \) \(^ {11}_{6} \) | 20. minutes | (choose one) | \_\_\_ minutes | | D | \( \text{Lu} \, \) \(^ {177}_{71} \) | 7.0 days | (choose one) | \_\_\_ days |
Transcribed Image Text:A medical technician is working with four samples of radionuclides listed in the table below. Initially, each sample contains 19.00 μmol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionuclide in each sample to decrease to 1/8 of the initial amount. | Sample | Radionuclide Symbol | Half-life | Initial Radioactivity | Time for Amount of Radionuclide to Decrease to 1/8 of Initial Amount | |--------|----------------------|-------------|-----------------------|---------------------------------------------------------------| | A | \( \text{Cu} \, \) \(^ {67}_{29} \) | 62.0 hours | (choose one) | \_\_\_ hours | | B | \( \text{Ta} \, \) \(^ {179}_{73} \) | 2. years | (choose one) | \_\_\_ years | | C | \( \text{C} \, \) \(^ {11}_{6} \) | 20. minutes | (choose one) | \_\_\_ minutes | | D | \( \text{Lu} \, \) \(^ {177}_{71} \) | 7.0 days | (choose one) | \_\_\_ days |
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