A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 10.00 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 8 U D symbol 191 76 178 23 73 212 K3 85 38 radionuclide 9 A Ta Bi 2 Si half-life 15 days 90 minutes 1 hour 65.0 days initial radioactivity ✓ (choose one) 1 (highest) 2 3 4 (lowest) (choose one) (choose one) time for amount of radionuclide to decrease to 1/8 of initial amount days minutes hours days 80 >

A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 10.00 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 8 U D symbol 191 76 178 23 73 212 K3 85 38 radionuclide 9 A Ta Bi 2 Si half-life 15 days 90 minutes 1 hour 65.0 days initial radioactivity ✓ (choose one) 1 (highest) 2 3 4 (lowest) (choose one) (choose one) time for amount of radionuclide to decrease to 1/8 of initial amount days minutes hours days 80 >

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 5.00 µumol 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. radionuclide time for amount of initial radioactivity radionuclide to decrease to 1/8 of initial amount sample symbol half-life 122 I I minutes A 4.0 minutes |(choose one) v 53 201 73.0 hours O hours B T1 (choose one) v 81 179 Ta 2. years (choose one) v |years 73 125 60.0 days I days D I (choose one) v 53 (choose one) 1 (highest) ? 3 4 (lowest)
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