A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each samplecontains 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 radionuclidein each sample to decrease to 1/16 of the initial amount.radionuclidesampleinitialradioactivitytime for amount ofradionuclide to decrease tosymbolhalf-life1/16 of initial amount59AFe45.0 days(choose one)days2626131BI8.0 days(choose one)days5353C33P25.0 days(choose one)days1515D558538Sr65.0 days(choose one) CXdaysG

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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 17.00 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 1/32 of the initial amount. olo sample A B C D symbol 52 25 15 8 212 82 91 39 radionuclide Mn O Pb Y half-life 6.0 days 122. seconds 11. hours 59.0 days initial radioactivity (choose one) (choose one) (choose one) (choose one) > time for amount of radionuclide to decrease to 1/32 of initial amount X days seconds hours days Ar
OSIMZ2/spwel... A" O NUCLEAR CHEMISTRY = Arvind V 1/5 Understanding radioactive half life A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 15.00 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 1/16 of the initial amount. radionuclide sample initial radioactivity time for amount of radionuclide to decrease to 1/16 of initial amount alb (choose one) years (choose one) days (choose one) hours (choose one) ✓ days B C D symbol 194 Os 76 96 43 212 82 88 39 Ic Pb Y half-life 6.0 years 4.0 days 11. hours 107. days X S ? M2²
MISSED THIS? Read Section 17.5. You can click on the Review link to access the section in your eText. Part A A patient is given 0.050 mg of technetium-99 m (where m means metastable-an unstable but long-lived state), a radioactive isotope with a half-life of about 6.0 hours. How long until the radioactive isotope decays to 1.3x10-2 mg ? Express your answer using two significant figures. ΑΣφ. ? hours Submit Request Answer
What percentage of Technituum-99m would remain in your body 24 hours after injection with this radioisotope? Assume that the initial percentage is 100%.
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 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 radionuclide in each sample to decrease to 1/4 of the initial amount. time for amount of initial radioactivity radionuclide to decrease to 1/4 of initial amount radionuclide sample symbol half-life 51 Cr 28. days (choose one) v days A 24 179 Ta 2. years (choose one) v years B 73 201 T1 73.0 hours (choose one) v hours 81 46 Sc 84.0 days (choose one) v O days D 21 (choose one) 1 (highest) 4 (lowest)
A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 8.00 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 1/16 of the initial amount. sample A B C D symbol 82 37 127 54 149 65 91 radionuclide 39 Rb Xe Tb Y half-life 1. minute 36.0 days 4.0 hours 59.0 days initial radioactivity (choose one) (choose one) ✓ (choose one) ✓ (choose one) ✓ time for amount of radionuclide to decrease to 1/16 of initial amount minutes days hours days
A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 17.00 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 1/16 of the initial amount. sample A B D symbol 18 9 75 M 35 177 71 152 63 radionuclide F Br Lu Eu half-life 2. hours 98.0 minutes 7.0 days 13. years initial radioactivity (choose one) (choose one) O (choose one) (choose one) time for amount of radionuclide to decrease to 1/16 of initial amount hours minutes days years
Radioactive isotopes that sit above the band of stability (N/Z too high) are most likely to decay by what mode(s)? Alpha emission Electron capture or beta emission Positron or electron capture Positron or alpha emission Beta emission
14
A medical technician is worklng with the four samples of radionuclides listed in the table below, Initially, each sample contains 1.00 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 1/8 of the initial amount. radionuclide Initial radioactivity time for amount of radionuclide to decrease to 1/8 of initial amount sample symbol half-life 59 Fe 26 O days A 45.0 days (choose one) 125 60.0 days (choose one) O days 53 130 Cs 55 29. minutes (choose one) O minutes 131 Cs 55 O days D. 10. days (choose one)

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