QUESTION 10 Complete the following reactions by identifying the missing nuclear symbols. You may type your answer as a ratio: Be + ? C | A + ? - P + n 27 13 15 AI + H? + a 1N + 3a ? + H QUESTION 11 What are the products of a neutralization reaction?

0 Write a nuclear equation for the type of decay each of these unstable isotopes is most likely to undergo. (Enter your answer in the form X. Use He for alpha decay, B for beta decay, and 1 for positron emission. Ignore gamma photons, neutrinos, and antineutrinos.) (a) ŞLi (b) 1³ N (c) 228 U (d) Si ↑ ↑ +

Would chromium-51 be useful for dating rocks containing chromium? Why or why not?

A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 18.00 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. sample A B C D symbol 179 73 91 39 103 46 59 radionuclide 26 Ta Y Pd Fe half-life 2.0 years 59.0 days 17. days 45.0 days initial radioactivity (choose one) (choose one) ✓ (choose one) ✓ (choose one) ✓ time for amount of radionuclide to decrease to 1/32 of initial amount years days days days

A medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 22.00 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 75 34 133 54 95 41 227 radionuclide 89 Se Xe Nb Ac half-life 120. days 5.0 days 35.0 days 22. years initial radioactivity (choose one) î (choose one) ↑ (choose one) ŵ (choose one) ↑ time for amount of radionuclide to decrease to 1/8 of initial amount X days days days years Ś

estion of neutrons found in: 245BK+5

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…

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

How long does it take a 30.0 mCimCi sample of gold-198 to decay so that only 7.50 mCimCi remains?

solve the following nuclear equations