Radioactive decay of the given nuclei follow the first order kinetics. Thus, first order rate law has been used in solving the question.
Iron-59 is a radioisotope that is used to evaluate bone marrow function. The half-life of iron-59...
Iron-59 is a radioisotope that is used to evaluate bone marrow function. The half-life of iron-59 is 44.5 days. If you begin with 43.5 mg of this isotope, what mass remains after 55.2 days have passed? mg
Thallium-201 is used medically to diagnose heart problems. The half-life of thallium-201 is 72.9 hours. If you begin with 33.2 mg of this isotope, what mass remains after 135 hours have passed? mg
05657571&id=689555599&snapshotid=1550248& Q Search References Use the References to access important values if needed for this question. Iron-59 is a radioisotope that is used to evaluate bone marrow function. The half-life of iron-59 is 44.5 days. If you begin with 37.4 mg of this isotope, what mass remains after 117 days have passed? Since the decomposition is a radioactive decay reaction, it is first order. Submit Answer
just give me the answer i dont need an explanation When the nuclide radium-226 undergoes alpha decay: The name of the product nuclide is The symbol for the product nuclide is Submit Answer Retry Entire Group 6 more group attempts remaining Fill in the nuclide symbol for the missing particle in the following nuclear equation He + BOTH Write a balanced nuclear equation for the following: The nuclide bismuth-214 undergoes alpha emission. (Use the lowest possible coefficients.) When the nuclide...
with 1.50 g of Cu from a CuSO4 solution? 16. Iron 59 has a half-life of 44.5 days. It is a beta emitter used to monitor spleen function after trauma. If an accident victim receives a 5.6-uCi dose, what fraction of the Fe59 nuclei will have decayed after 17 days?
A fossil was dated using rubidium-87, which undergoes beta decay and has a half-life of 4.75x1010 years. Calculate the age of the fossil if (5.7x10^1)% of rubidium-87 remains in the sample. Report your answer with 2 significant figures. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: X10 Answer units Question 2 (1 point) Thallium-201 is used to diagnose heart disease. The half-life of thallium-201 is 72.9 hours. If a patient takes 7.7 ug,...
Some Radioactive isotopes Useful in Medical Imaging Mode of Isotope Decay Half-life Use in Medical Imaging 8 MP EC. Carbon-11 Fluorine-18 Phosphorus 32 Chromium-51 Tron-59 Gallam-67 Selenium-7 Krypton 81m Strontium-51 Technetium-99 Iodine 131 Mercury-197 Thallium-201 20.3 m 109 m 14.30 27.70 45 78.3 h 118d 1335 EC FC Brain canto trace Klucose metabolism Brain can to trace glucose metabolism Detect eye tumor Diagnose albinism, image the wpleen and gastrointestinal tract Bone marrow function, diagnos is Whole body scan forumo Pancreas...
An isotope of cesium (Cesium-137) has a half-life of 30 years. If 1.0 mg of cesium-137 disintegrates over a period of 90 years, how many mg of cesium-137 would remain? 14. Thallium-208 has a half-life of 3.053 min. How long will it take for 120.0g to decay to 7.500 15. Element-106 has a half-life of 0.90 seconds. If one million atoms of it were prepared, how many atoms would remain after 4.5 seconds? 16. A 2.5 gram sample of an...
Chromium-51 is a radioisotope that is used to assess the lifetime of red blood cells The half-life of chromium-51 is 27.7 days. How much time is required for the activity of a sample of chromium-51 to fall to 13.2 percent of its original value? days Submit Answer Retry Entire Group 9 more group attempts remaining
Calcium-47, used to evaluate bone metabolism, has a half-life of 4.5 days. How many milligrams of a 49-mg sample of calcium-47 remain after 54 days? Express your answer using two significant figures. mg