Sodium-24 is used to treat leukemia and has a half-life of 15 hours. A patient was injected with a salt solution containing sodium-24. What percentage of the 24Na remained after 45 hours?

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

A:

Q: The gallium-67 nuclide is used in tumor diagnostic applications. This has a half-life of 78.2 hours.…

A: given, half life =  78.2 hours  time = 5.00 days

Q: Iron-59 is a radioisotope that is used to evaluate bone marrow function. What is the half-life of…

A: Given,final activity of iron-59 = 17.2 %The time taken to decrease activity of iron-59 from original…

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

A:

Q: A sample of radioactive technetium-99 of half-life 6 hh is to be used in a clinical examination. The…

A: Given: Half-life of isotope = 6 hours. And the time passed = 15 hours.

Q: the half life of radioactive element unobtanium-37 is 10 seconds. If 80 grams of unobtanium-37 are…

A:

Q: In a treatment that decreases pain and reduces inflammation of the lining of the knee joint, a…

A: Initial count (No) = 1100 per second Final count (Nt) = 1.14 per second Time (t) = 24 hours

Q: If a tree dies and the trunk remains undisturbed for 1.770 × 10⁴ years, what percentage of the…

A: The objective of this question is to find out the percentage of the original 14C (Carbon-14) that is…

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

A: Formula for radioactive decay is given as,

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

A:

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

A: The objective of the question is to calculate the amount of Americium-241 consumed in a smoke…

Q: 1. A lab tech prepares 50.0 mg of I-123 on Tuesday, how many mg will remain 39 hours later if the…

A:

Q: You have a sample of Bismuth-212 to prepare for an upcoming medical test.  This isotope has a…

A: The radioactivity follows first-order kinetics. The half-life relates to the rate constant, k for…

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: A substance has a half-life of two days.  If 10 days have passed, how many half-lives has the…

A: Half life means the time in which amount of substance become half of its initial value

Q: The half-life of sodium-24 is 15 hr. If a sample initially contains 40. g of sodium-24, how much…

A: Radioactive reactions are First order reactions. Half life of Sodium-24 is 15 hr. Initial…

Q: Technetium -99 (Tc-99) is the most commonly used radiotracer in medicine. It is used to detect…

A: Decays reactions are first order reactions. Since we know that the relationship between the…

Q: The half-life of 14C is 5730 years. A sample contains 92.4% of the 14C it would contain if it were…

A: The age of the old fossils can be find out by using carbon dating method.  So the amount of 14C…

Q: If a tree dies and the trunk remains undisturbed for 1.375 × 10⁴ years, what percentage of the…

A: Radioactive decay follows first-order kinetics. The half-life of the first-order reaction does not…

Q: Nitrogen-13 has a biologic half-life of 2.84 minutes and emits positrons.    If a patient is…

A: Initial concentration of nitrogen-13 = 500.0 micrograms  Half- life = 2.84 minutes  Half-life means…

Q: Iron-59 is a radioisotope that is used to evaluate bone marrow function. The half-life of iron-59 is…

A: ⊙ Radioactivity, phenomena follow first order            kinetics                K =2.303t…

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

A:

Q: The half-life of radioactive chromium-51 is 28 days. If a sample of chromium-51 has a mass of 12.0…

A: Given, Half Life , t1/2 = 28 days First, calculate rate constant ,K to calculate time (t)

Q: Th-234 has a half-life of 24.1 days. If a 355 mg sample is initially present, how many half-lives…

A: Given  Half life ( t1/2 )  = 24.1 days  Initial amount  = 355 mg  Time ( t ) = 96.4 days  Number of…

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

A:

Q: (5) The half life of sodium-24, which diminishes by first order radioactive decay, is 15.0 hours. A…

A: Given, the half-life is for sodium-24 Time for first order decay = 15.0 hours Now, calculate the…

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

A:

Q: Iodine-131 is administered orally in the form of NaI(aq) as a treatment for thyroid cancer. The…

A: Given half life = 8.04 days time = 12.7 days initial mass = 31.1 mg

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

A:

Q: A 120-mg sample of technetium-99m is used for a diagnostic test. If technetium-99m has a half-life…

A: The basic formula for half life equations is A= amount remainingP= original amountt= elapsed…

Q: If a tree dies and the trunk remains undisturbed for 1.195 × 10⁴ years, what percentage of the…

A: Carbon dating is a technique to estimate the age of the tree or rock

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.