EescCAnnouncements - XO NUCLEAR CHEMISTRYUnderstanding radioactive half lifesampleAB7CA medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 12.00 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 to1/8 of the initial amount.ExplanationADZ241symbol95753418https://www-awu.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-IBMBkpcnaFu0F7UjsroJMKrbFHXPNvwILIE9AmXuyhK4Y... ANb9radionuclide5526SeFFeCheckWALEKS - Chisom O XLEhalf-life35.0 days#120. days2. hours3. years3Q SearchES DC$initialradioactivity4(choose one) ✓(choose one)(choose one)(choose one)RPearson Sign InF%5Tx york college - Sea Xtime for amount ofradionuclide to decrease to1/8 of initial amount6V Bdaysdayshoursyears&G H714144UN8MNursing (BS) - UrxDE(Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center9ho DDIJUTOK<)Welcome, Chisom X +3OLPinsert{[1/52=prt sc←14ⒸCHAcces6:3712/3/20backspace

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sample A B C D symbol 95 41 75 34 Nb 18 9 radionuclide Se 55 26 the F Fe half-life 35.0 days 120. days 2. hours 3. years initial radioactivity (choose one (choose one) (choose one) (choose one) time for amount of radionuclide to decrease to 1/8 of initial amount days days hours years

sample A B C D symbol 95 41 75 34 Nb 18 9 radionuclide Se 55 26 the F Fe half-life 35.0 days 120. days 2. hours 3. years initial radioactivity (choose one (choose one) (choose one) (choose one) time for amount of radionuclide to decrease to 1/8 of initial amount days days hours years

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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Some Radioactive Isotopes Useful in Medical Imaging Mode of Isotope Decay Half-life Use in Medical Imaging B+, Y B+, Y Carbon-11 20.3 m Brain scan to trace glucose metabolism Brain scan to trace glucose metabolism Detect eye tumors Diagnose albinism, image the spleen and gastrointestinal tract Bone marrow function, diagnose anemias Whole-body scan for tumors Pancreas scan F Fluorine-18 109 m 14.3 d Phosphorus-32 Chromium-51 Iron-59 Gallium-67 Selenium-75 Krypton-81m Strontium-81 E.C., Y B, Y E.C., Y E.C., Y Cr Fe SGa 27.7 d 44.5 d 78.3 h 118 d 13.3 s Lung ventilation scan Scan for bone diseases, including cancer Brain, liver, kidney, bone scans; diagnosis of damaged heart muscle Diagnosis of thyroid malfunction Kidney scan Heart scan and exercise stress test Sr 22.2 m 38 99m Te 43 Technetium-99m 6.01 h Iodine-131 В, у E.C., Y E.C., Y 8.04 d Mercury-197 Thallium-201 64.1 h 3.05 d
The half life of a specific radionuclide is 8 days. How much of an 80mg sample will be left after 24 days?
40) If the half life- of a 100 mg radioactive isotope is 24 hrs. How many milligrams remain after second half life.
E NUCLEAR CHEMISTRY Understanding radioactive half life A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 10.00 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. sample A 10 B U D symbol 52 25 75 35 103 46 188 radionuclide 74 Ma Br Pd W half-life 6.0 days 98.0 minutes 17. days 69.0 days initial radioactivity (choose one) B (choose one) B (choose one) (choose one) time for amount of radionuclide to decrease to 1/4 of initial amount days minutes days 0/5 days
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
Please help me how to solve this equation. Thank you very much
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
Some Radioactive Isotopes Useful in Medical Imaging Mode of Decay Isotope Half-life Use in Medical Imaging B+, y B+, y Carbon-11 Fluorine-18 Phosphorus-32 Chromium-51 Brain scan to trace glucose metabolism Brain scan to trace glucose metabolism Detect eye tumors Diagnose albinism, image the spleen and gastrointestinal tract 20.3 m EF 109 m 14.3 d 27.7 d 44.5 d Cr Fe SiGa E.C., Y В, у E.C., Y E.C., Y Iron-59 Bone marrow function, diagmose anemias 78.3 h 118 d Whole-body : scan for tumors Pancreas scan Lung ventilation scan Scan for bone diseases, including cancer Brain, liver, kidney, bone scans; diagnosis of damaged heart muscle Diagnosis of thyroid malfunction Kidney scan Heart scan and exercise stress test 118 d 13.3 s Strontium-81 22.2 m Technetium-99m 6.01 h 8.04 d Iodine-131 B, y 1Hg 201TI Mercury-197 Thallium-201 E.C., Y 64.1 h E.C., y 3.05 d The radioactive isotope strontium-81 is used in medical imaging as indicated on the table above. If 51.l milligrams of strontium-81 is…
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