Sodium-24 (t1/2= 15h) is used to study blood circulation. If a patient is injected with an aqueous solution of 24NaCl whose activity is 2.5x109d/s, how much of the activity is present in the patient’s body and excreted fluids after 4.0 days?

Q: Identify the radiotracer used to study problems with spleen. O iron-59 O phosphorus-32 O…

A: Correct answer is iron-59. Radiotracer Fe-59 is used to study problems with spleen.

Q: List some Radionuclides used as Radiotracers?

A: Radionuclides used as Radiotracers: Iodine-123 ( I123 ), Carbon-14 ( C14 ) , Gallium-67 ( Ga67 ) ,…

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…

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A:

Q: Chromium-51 is a radioisotope that is used to assess the lifetime of red blood cells The half-life…

A:

Q: The smallest C-14 activity that can be measured is about 0.20%. If C-14 is used to date an object,…

A: Given :          C-14 activity measured is = 0.20% We have to calculate object died within how many…

Q: Iodine-125 has a half-life of 60.4 days and is used in radiation therapy to treat prostate cancer…

A: Since the decay reactions are first order reactions Hence we can say  1) Half life = ln(2) / K 2)…

Q: In redox reaction, what kind of half reaction is accepting or gaining of electrons? Plutonium-241…

A:

Q: A radioactive waste contains 2 curies (Ci) of 60CO per liter and 2 mCi of 45 Ca per liter. The waste…

A: Given that:                Amount of C60o per litre is 2 Ci                Amount of C45a per litre…

Q: Explain how you might use radioactive Fe-59 (a beta emitter with t 1/2= 44.5 days) to determine the…

A: Given: Half life of Fe-59 = 44.5 days let the initial amount of Fe-59 be 100 mg. Final amount of…

Q: A bone taken from a garbage pile buried under a hillside had 14C/12C ratio 0.477 times the ratio in…

A: We have to find the date when the animal was buried.

Q: Your friend decides to smoke a cannabis cigarette, which increased his blood level of THC to 19…

A:

Q: When 32P is converted to 32S the particle produced is: beta alpha gamma proton positron

A: In this decay, mass no. Remains same but atomic no. Increases by one and beta particle is emitted.

Q: What would be the ¹4C activity in a 2500-year old wooden object? Assume that the ¹4C activity of an…

A:

Q: medical technician is working with the four samples of radionuclides listed in the table below.…

A:

Q: A supply of fluorodeoxyglucose (FDG) arrives at a positron emission tomography clinic at 8 am. At 2…

A:

Q: Cobalt-60 is used extensively in medicine as a source of g-rays. Its half-life is 5.27 years. How…

A: Given Half life ( t1/2 )   = 5.27 year  Initial Activity ( A0 )  = 100 %  Remaining amount ( At ) =…

Q: None

A: Calculate the Number of Atoms per Mole:The number of atoms in one mole (Avogadro's number) is…

Q: Calculate the mass (in µg) of 239Pu

A:

Q: Define alpha (a) carbon

A: The group which when attached to the hydrocarbon by the replacement of H-atom that completely…

Q: Some Radioactive Isotopes Useful in Medical Imaging Mode of Isotope Decay Half-life Use in Medical…

A:

Q: Plutonium-238

A: We wil use first order kinetics formula to get the answer

Q: A substance has a half-live of 5 minutes.  We have 50 grams of substance.  If 60 minutes has passed,…

A: The solution is as follows :

Q: what is the energy deposited by an alpha particle while passing through a cell of size 10 μ

A: In this question we habe to explain what happened when the alpha particle passing through a cell of…

Q: MISSED THIS? Read Section 17.5. You can click on the Review link to access the section in your e…

A:

Q: What percentage of Technituum-99m would remain in your body 24 hours after injection with this…

A: Given,

Q: Some Radioactive Isotopes Useful in Medical Imaging Mode of Decay Isotope Half-life Use in Medical…

A: Given that, (1)Radioactive isotope phosphorus-32 Calculate protons and Neutrons? (2) calculate…

Q: A medical technician is working with the four samples of radionuclides listed in the table below.…

A: Solution                     Activity is calculated as follows

Q: Rank the activity of: Mg, Zn, Fe, Cu, H, and Al ) ____ ____ ____ ____ ____ ____ Most Active Least…

A: Reactivity series : K> Na>Ca >Mg> Al> Zn>Fe>Pb>H>Cu>Hg>Ag> Au

Q: Radioactive isotopes that sit above the band of stability (N/Z too high) are most likely to decay by…

A: Step 1:Alpha emission: This involves the emission of an alpha particle, which consists of two…

Q: A living tree contains 14C (half-life, 5730 years) and has a specific activity of 750 counts per…

A: The nuclear rate of  decay A of 14C is proportional to number of particles N. Half-life of C-14 =…

Q: How old in years is a bottle of a solution if the deuterium 2H content is 67% that of a new wine?…

A: Given , ' Half life of deuterium = 1 century = 100 yr

Q: A solution of selenium-75, a radioisotope used in the diagnosis of pancreatic disease, is found just…

A: The formula which is useful to solve the given problem is given below DOSE = ACTIVITY × AMOUNT

Q: A medical technician is working with the four samples of radionuclides listed in the table below.…

A: Given Sample 19 umol Or 1/16 decreases

Q: A sample of sodium-24 with an activity of 12 millicuries (mCi) is used to study the rate of blood…

A: Radioactive reactions are first order reaction. Initial activity of Sodium-24, No = 12 mCi Half life…