A solution of sodium iodine containing the radioactive isotope Iodine-131 was given to a patient. If the sample contained 24.25 μg of Iodine-131 then how many microgram will be left after 2.50 days. The half-life of Iodine-131 is 8.07 days

Q: The half life for the decay of carbon-14 is 5.73 × 10’ years. Suppose the activity due to the…

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Q: How many half‑lives of the unknown radioactive substance have occurred?

A: As we know that decay of radioactive substance follows first order kinetics

Q: Element X has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10…

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Q: If you have 1 gm of pure potassium 40 (40K) that is experimentally determined to emit about 105 beta…

A: Activity of 40 K = 105 beta rays. The decay constant λ can be calculated as follows:

Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

A: To solve this problem first we find the rate constant ( k) using half life time . Then we will…

Q: Radium-226 is radioactive and has a half life of 1600. years. How long would it take a sample to…

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Q: . Barium – 122 has a half-life of 2 minutes. Suppose you obtain a sample weighing 10.0 g and it…

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Q: Carbon-11 is used in medical imaging. The half-life of this radioisotope is 20 min. What percentage…

A: redioactive decay process follows 1st order Kinetics. The intgrated ratelow for 1st : order…

Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

A: The spontaneous breakdown of the nucleus causes the release of energy and matter from the nucleus,…

Q: Cobalt-60 has a half-life of 5.27 years and is used in cancer treatment. If a patient ingests 20.0 g…

A: Since the decay reactions are first order reactions hence the relationship between the time and mass…

Q: Gallium-67 is used medically in tumor-seeking agents. The half-life of gallium-67 is 78.2 hours. If…

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Q: Gallium-67 is used medically in tumor- seeking agents. The half-life of gallium- 67 is 78.2 hours.…

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Q: lodine-131 is used in the treatment of tumors in the thyroid gland. Its half-life is 8.1 days.…

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Q: Element X has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10…

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Q: If we begin with 6.00 mg of iodine-131 (t1/2 = 8.07 hr), how much remains after seven half-life…

A: Given: Initial amount of iodine-131 = 6.00 mg t1/2 = 8.07 hr n = 7 To find: how much iodine remains…

Q: The isotope Bismuth-212 has a half life of 368.65 day. What mass in mg of a 2 mg sample will remain…

A: Half life of Bismuth, t1/2 = 368.65 days. Bismuth-212 is a radioactive element. Thus, it will follow…

Q: 1. Iron-59, which is used to diagnose anemia, has a half-life of 45 days. What fraction of it is…

A: As in the question, it is given that Iron-59 is used to diagnose anaemia and has a half-life of 45…

Q: 17. If it takes 12 half-lives for a radioactive chemical (k = 4.85 x 10-2 day¹) to decay to a level…

A: Half-life is the time taken for half of the radioactive atoms of a specific radionuclide to decay

Q: Gallium-67 is used medically in tumor-seeking agents. The half-life of gallium-67 is 78.2 hours. If…

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Q: lodine-131 has a half-life of 8.1 days. How much of 2 g of the isotope will remain after 56.7 days?…

A: The nuclear half-life of a radioactive isotope tells you how much time must pass in order for half…

Q: If we begin with 5.00 mg of iodine-131 (t1/2 = 8.07 hr), how much remains after eight half-life…

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Q: The half life for the decay of carbon-14 is 5.73 × 10 years. Suppose the activity due to the…

A: Given that : Half-life of carbon-14 = 5.73 x 103 years The activity due to the radioactive decay =…

Q: 27. A radioactive substance weighs 30.0 grams and has a half-life of 2,460 years. How much will…

A: As  we know that all radioactive reactions are first order reaction. Given in the question, Mass of…

Q: A radioisotope has a half-life of 8.7 h. What mass of the radioisotope will be left after 24.5 h if…

A: The objective of the question is to find out the the mass of radioisotope left after 24.5 h.

Q: Copper(II) acetate containing Cu is used to study brain tumors. This isotope has a half-life of 12.7…

A: Radioactive decay: Radioactive decay or nuclear disintegration is a process in which an atom with…

Q: Define the term half-life as used in radioactivity. The half-life of carbon-14 is 5730 years. If the…

A: Half life in Radioactivity : It is the time required by a radioactive nuclei to decay to exactly…

Q: One of the radioactive isotopes used in chemical and medical research is iodine-125, which has a…

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Q: Chemistry An unknown radioactive substance has a half-life of 3.20 hourshours . If 34.7 gg of the…

A: All natural and artificial radioactive decays follows first order kinetics The integrated rate…

Q: The half life of 123I is 13 hr.  How much of a 64 mg sample of 123I is left after 26 hours?

A: Given,Half life of 123I is 13 hr

Q: Technetium‑99m, an important radionuclide in medicine, has a half‑life of 6.0 hours. What percentage…

A: Using concept of half life time.

Q: Cobalt-60 is radioactive and has a half life of 5.26 years. How long would it take a sample to decay…

A: We have to calculate the time taken.

Q: The half-life of Radium-226 is 1590 years. If a sample contains 300 mg, how many mg will remain…

A: We are given Radium -226 t1/2=1590 years                  (i) We know radioactive decay always…

Q: Gallium-67 is used medically in tumor-seeking agents. The half-life of gallium-67 is 78.2 hours. If…

A: Gallium - 67 has a half-life of 78.2 hours. Initially 36.7 mg of Gallium - 67 were present.   Here,…

Q: A radioactive sample contains 2.90 gg of an isotope with a half-life of 3.8 days How much of the…

A: Given- Initial mass = 2.90 g Half life = 3.8 days To find- mass of the isotope in grams remaining…

Q: How much of a 0.230 g radioactive sample with a half-life of 8 hours would remain after a period of…

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Q: A radioactive isotope has a half life of 60.2 minutes.How long will it take for radiation from a 325…

A: The radioactive decay of an isotope follows a first-order reaction, The integrated rate law for a…

Q: A radioactive isotope has a half life of 83.3 minutes. How long will it take for the radiation from…

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Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 1. Gold-198 is used in the diagnose of liver problems. The half-life of Au is 2.69 day. If you begin…

A: Given data: half life of 198Au = 2.69 day Initial concentration of  198Au is 2.8 μg Time = 10.8 day

Q: The half-life of I-131 is 8.0 days. If a medical treatment involves a dose of 100. mg of I-131, how…

A: The remaining I-131 isotope after 16 days is calculated as shown below. where t1/2 is the half-life,…

Q: Chromium-51 nuclide is used in studies to evaluate the lifespan of red blood cells and bone marrow…

A: Chromium-51 is a commonly used radionuclide with a half-life of 27.7 days, emitting gamma rays with…

Q: Iodine-131 is used in the diagnosis and treatment of thyroid disease and has a half-life of 8.0…

A: Formula: Since Iodine is a radioactive substance, it follows the 1st order rate law. The half-life…

Q: A solution of sodium iodine containing the radioactive isotope lodine-131 was given to a patient. If…

A: These radioactive decay reactions are the first order reactions . In these type of reactions , rate…

Q: Calcium – 47 has a half-life of 4.5 years . How long will it take a 100 mg sample to drop to 12.5…

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Q: A patient is given a 0.05 mg dose of Tal which has a half-life of 6 hours. How long will it be until…

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Q: Thallium-201 is used medically to diagnose heart problems. The half-life of thallium- 201 is 72.9…

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Q: One of the radioactive isotopes used in chemical and medical research is iodine- 125, which has a…

A: Given -  Half life of iodine = 61 days  Initial concentration of iodine (No) - 1 g After time t…

Q: Polonium-210 is a radioactive substance with a half-life of 138 days. If a nuclear facility is…

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.