Technetium−99m is used in diagnostic imaging studies involving the brain.  What fraction  of the radioisotope remains after 54 h have elapsed?  The half-life  of technetium−99m is 6 hours

Q: The activity of 30pg of 247Cm is nCI, Calculate the half-life of 247Cm in unit year. a. 1.55 x 1015…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Q: Technetium-99m, a metastable state of technetium-99 commonly used in nuclear medicine, has a…

A:

Q: Gallium-67 is used medically in tumor-seeking agents. What is the half-life of gallium-67 if 229…

A: Time = 229 hours  Reduced activity = 13.2 %  Half life time of gallium - 67 = ?

Q: Technetium-99 has a half-life of 6.0 hours. What fraction of technetium-99 in the sample will remain…

A: Radioactive decay is 1st order reaction.

Q: Copper-64 is used in the form of copper acetate to study brain tumors. It has a half-life of 12.8…

A: Since we know that radioactive decy follow first order kinetics  So to solve this problem we will…

Q: Iodine-131 is used in the diagnosis and treatment of thy- roid disease and has a half-life of 8.1…

A: Given data: The half-life of iodine-131 = 8.1 days The initial amount of the sample= 10 μg

Q: Gadolium-153, which is used to detect osteoporosis, has a half life of 242 days. What percentage of…

A: Radioactive decay follows first order kinetics.Equation for half life, t½ = ln2 / kTherefore k = ln2…

Q: Strontium-90 is a product of the Chernobyl reactor accident of 1986.  Strontium-90 has a half life…

A: Using half life , we will first calculate rate constant. Then calculate time required to reduce to…

Q: Americium-241 is widely used in smoke detectors. Calculate the amount of americium-241 consumed in a…

A: The radioactive substances mainly possess decay process through first-order kinetics and half-life…

Q: technetium-99 has a half-life of 6.0 hours. How many gramsin a 24.0 gram sample will remain…

A:

Q: ^35 S (abundance 0.02%) is the longest living of the sulfur radioactive isotopes. It is formed from…

A: Answer - Nuclear reaction -  a nuclear reaction is semantically considered to be the process in…

Q: Phosporus-32 is used in biochemical studies to follow the pathway taken by metabolites. Its…

A: The question is based on the concept of chemical kinetics.   All radioactive decay follow first…

Q: Strontium-90 is one of the radioisotopes released in the Chernobyl nuclear plant accident. The…

A:

Q: Technetium-99 has been used as a radiographic agent in bone scans (9943Tc is absorbed by bones). If…

A: Radiographic process follow first order:Total no. of hours in 2 - days = 2 x 24 hours…

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

A:

Q: Technetium-99 has been used as a radiographic agent in bone scans (9943Tc is absorbed by bones). If…

A: The half-life period is the time taken by one half of the radioactive substance to decay or…

Q: Technetium−99m is used in diagnostic imaging studies involving the brain.  What fraction  of the…

A:

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

A:

Q: Sodium-24 is used to treat leukemia and has a half-life of 15 hours. A patient was injected with a…

A: Radioactive disintegration  is very unstable nucleus loosing energy  and it follows first order

Q: Radioactive C14 undergoes exponential decay with a half-life of 5730 years. What is the decay

A: Radio active decay follows first order kinetics Decay constant  = 0.693/t1/2

Q: Consider the radioisotope "Ca (half life = 1.03 × 105 years). What is the first order rate constant…

A: Rate constant is 6.73 x 10-6 yr-1

Q: The half-life of 9USr is 29 years. What fraction of the atoms in a sample of 0Sr would remain 175…

A: here we are required to find the fraction of sample of Sr that would remain after 175 years later

Q: A to 240mg sample of technetium 99M is used for a diagnostic test. if Technetium -99m has a…

A:

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

A: The isotope of iodine, 123I, undergoes decay in accordance with first order kinetics. The half-life…

Q: Americium-241 is widely used in smoke detectors. Calculate the amount of Americium-241 consumed in a…

A: Given: The initial concentration of Americium-241= 3.80µg The half-life of Americium-241=433 years.…

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

A:

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

A: Given: The half life, (t1/2)=27.7 days. The initial concentration of Cr-51=28.7 mg 981

Q: Technetium-99m is an ideal radioisotope for scanning organs because it has a half-life of 6.0 hh and…

A: Given  Initial mass = 85.6 mg One half life = 6 hour

Q: Iodine-131 is used in the treatment of thyroid disease. What is the half-life of iodine-131 if a…

A: Weight of sample initially = 160mg Weight of sample finally = 5mg Time elapsed = 40 days We have to…

Q: Nitrogen-13 is used in tracers injected into the bloodstream for positron emission tomography (PET),…

A: Hii there, since there are multiple questions posted. We are answering first question. If you need…

Q: 11. Fluorine-18, which has a half-life of 110 minutes, is used in PET scans. If 100 mg. of…

A: Given data half-life : t1/2=110 min Initial amount : No=100 mg Start time = 8:30 a.m. Arriving time…

Q: The half life of 231Pa is 3.25 x 104 years. How much of an initial 10.40 microgram sample remains…

A: Formula used to calculate the sample that remains after 3.25X105 years,

Q: Technetium-99m is an ideal radioisotope for scanning organs because it has a half-life of 6.0 h and…

A: Given, Half life of Tc-99 is ---- 6.0hours Initial amount of Tc-99 is--- 78.7mg How much amount of…

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

A:

Q: The half-life of iron-59 is 44.5 days. How much of a 3.00-mg sample will remain after 222.5 days?

A:

Q: Americium-241 is widely used in smoke detectors. Calculate the amount of americium-241 consumed in a…

A:

Q: F-18, also referred to as Fludeoxyglucose is a radiopharmaceutical that is used in medical imaging,…

A: Fluorine-18 is the fluorine radioisotope, an important source of the positrons. The mass of F-18 is…

Q: A 1.00 L sample of water near a nuclear plant registered a 2.55 pCi of iodine–131. What is the…

A: The given data contains, half life =8 days. =8 days×24 hourday×60 minhour×60 shour =681200 s mass of…

Q: The bromine isotope Br-75 is used for imaging in positron emission tomography. Br-75 has a half-life…

A: Half life of Br- 75 ( t1/2 )         = 57 hour  Suppose initial amount [ A ]0 = 100 %  Remaining…

Q: F-18, also referred to as Fludeoxyglucose is a radiopharmaceutical that is used in medical imaging,…

A: The form of energy produced due to the interaction between an electric field and magnetic field that…

Q: Cobalt-60 is a radioactive isotope that is widely utilized in nuclear medicine as a -ray source. It…

A: Given that, the half-life of Co-60 is t1/2 = 5.27 years. a. We have to the time that it will take…

Q: The half-life for P-32, a radionuclide used in DNA sequencing, is 14.28 days. Calculate the…

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

Q: Nitrogen-13 is used in tracers injected into the bloodstream for positron emission tomography (PET).…

A:

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: 1) Co-60 is used extensively in radiotheraphy as a source of y- rays. Its half life is 5.27 years.…

A: a) Given: Its half-life is 5.27 years. The number of years does Co-60 to decrease to 35 % of its…

Q: Nitrogen-13 is used in tracers injected into the bloodstream for positron emission tomography (PET).…

A:

Q: 18° Re is used in the treatment of bone cancer. The half-life of 18° Re is 3.72 days. If you begin…

A: Half life time = 3.72 days Initial amount = 1.93 ug  Time = 18.6 days  Mass remains after 18.6 days…

Q: a sampe of sodium-24 with an activity of 12 mCi is used to study the rate of blood flow in the…

A: Half-life of radio active decay: This is the time in which the activity is reduced to half of its…

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…

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.