回中A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 1.00 umol ofthe radionuclide.First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionuclide in each sampleto decrease to 1/16 of the initial amount.radionuclidetime for amount ofradionuclide to decrease to1/16 of initial amountinitialsampleradioactivitysymbolhalf-life188Re17. hourshoursv (choose one)1 (highest)A751303Cs29.0 minutes4 (lowest)|minutesB5551Mn46.0 minutes(choose one)minutes25526.0 daysdaysMn25(choose one)ExplanationCheckO 2021 McGraw-Hill Education. All Rights Reserved. Tems of Use | Privacy AccessibilityMAY10MacBook Air

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A. time for amount of radionuclide to decrease to 1/16 of initial amount radionuclide initial radioactivity sample symbol half-life 188 17. hours hours v (choose one) 1 (highest) Re 75 2 130 Cs 3. 29.0 minutes 4 (lowest) minutes B 55 51 46.0 minutes minutes Mn 25 (choose one) 52 Mn |days 6.0 days (choose one) D. 25

A. time for amount of radionuclide to decrease to 1/16 of initial amount radionuclide initial radioactivity sample symbol half-life 188 17. hours hours v (choose one) 1 (highest) Re 75 2 130 Cs 3. 29.0 minutes 4 (lowest) minutes B 55 51 46.0 minutes minutes Mn 25 (choose one) 52 Mn |days 6.0 days (choose one) D. 25

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 medic hnican is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 22.00 umol of the radionuclide. First, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionudlide 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 139 Ce 58 138. days (choose one) V days A 125 60.0 days (choose one) v O days B 53 77 Br 35 57.0 hours |(choose one) v hours 51 Mn O minutes D 46.0 minutes [choose one) v 25
A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 24.00 umol 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 1/3 of the initial amount. radionuclide time for amount of radionuclide to decrease to 1/32 of initial amount sample Initial symbol half-ife radioactivity 177 Lu 71 7.0 days tehnose one 0 O days 212 Bi O nours 1. hour (choose one) e 83 85 O days Sr 65.0 days (choosa one) B 38 88 107. days O days D. Y (choose one) B 39 time for amount of radionuclide to decrease to radionuclide Initial sample radioactivity symbol half-life 1/32 of initial amount 177 Lu 7.0 days O days A v (choose one) 71 1 (highest) 212 Bi 83 1. hour O hours 3. 4 (lowest) 85 Sr 38 I days 65.0 days (choose one) O 88 107. days O days D Y. (choose one) B 39
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A certain radioactive isotope has a half life of 15 minutes. What fraction remains after 1 hour? Group of answer choices 1/8 1/16 1/2 1/32 1/4
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