what mass remains after 28.5 days have passed?

Q: Questlen ? Technetium-99, a radioactive tracer used in medicine has a half life of 14.6 hours. How…

A: Given, Half-life ( t1/2) = 14.6 hours

Q: Carbon-14 (C-14) is a radioactive isotope with a of 5,730 years. It decays to stable through beta…

A: The main use of C-14 is for dating purposes that is determining the age of buried organic materials…

Q: Neptunium-237 was the first isotope of a transuranium element to be discovered. The decay constant…

A:

Q: The half-life of 218Po is 3.1 minutes. How much of a 146 gram sample remains after 0.40 hours? 130…

A: Since the decay reactions are first order reactions And we know that the relationship between the…

Q: Iodine-131 has a half-life of 8.1 days and is used as a tracer for the thyroid gland. If a patient…

A:

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: 120 mg sample of technium 99m is used for a diagnostic test. if a technium 99m has a half-life of…

A: Given- Initial mass = 120 mg Half life = 6.0 hrs To find- milligrams of the technetium 99M sample…

Q: The half-life time of an isotope of element X is 7.4 hours. Assuming that you start with 431 mg of…

A:

Q: Gold-191 has a half-life of 12.4 hours.  What mass of this isotope would remain after 49.6 hours if…

A:

Q: Mr. Albedo stumbled upon an unknown material in an abandoned laboratory. He believes that this…

A: Given, initial mass of sample = 10.5 g final mass of the sample = 0.171 g time required to decrease…

Q: The half-life of Uranium is 235 (U235) decaying to lead 207 (Pb 207) is 704 million years suppose an…

A:

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

A:

Q: The isotope 83212Bi has a half-life of 1.01 years. What mass (in mg) of a 2.00-mg sample will not…

A:

Q: Find the partial half-lives of the isotope 22-Na when it decays by a) electron capture b) positron…

A:

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: In 1954 researchers found an ancient Egyptian ship that was buried near the Pyramids approximately…

A: Given The half-life period for 14C = 5730 y = 1.8 x 1011 sec. Molar mass of 14C = 14 g/mol NA =…

Q: The half-life of bismuth-214 is 20.0 minutes. If a customer requests 2.50 g of bismuth-214 from a…

A: Half life of Bi-214 t12 = 20 min Total shipping time, t = 3 hr…

Q: This exercise uses the radioactive decay model. The half-life of strontium-90 is 28 years. How long…

A:

Q: The radioisotope phosphorus-32 is used in tracers for measuring phosphorus uptake by plants. The…

A: We have to calculate the amount lost .

Q: 1. Sodium-24 is a diagnostic radioisotope used to measure blood circulation time. How much of 20.0…

A:

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: Chemistry The 35S atom on a radiolabeled amino acid, methionine, has a half-life of 87.4 days. What…

A: In a radioactive element, the decay of the nucleus of the element takes place due to the imbalance…

Q: A radioisotope “X” has a half-life of 2.5 years. Determine (to the nearest 0.1 mg) how much of a…

A: All the radioactive reactions follow first order kinetics . The term half life is defined as the…

Q: Radioactive decay The radioactive bismuth isotope 21°BI has a half-life of 5 days. If there is 100…

A: The amount of radioactive substance remaining after t days is given by, ft=1002−t/5

Q: The accompanying graph illustrates the decay of 88-42Mo, which decays via positron emission. The…

A:

Q: f In 2 Half-Life uses the formula N (t) = Noe. No = Initial Amount %3D t = time h length of…

A: Given: The initial amount of Chromium 51 = 85 mg The half-life of Chromium 51 = 27.7 days We have to…

Q: What is the half-life of iodine-123 if 37.7 hours are required for the activity of a sample of…

A: Radioactive decays follow first order kinetics.

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

A:

Q: Mr. Albedo stumbled upon an unknown material in an abandoned laboratory. He believes that this…

A:

Q: sodium-24 is a radioisotope used to measure blood circulation time. Calculate the mass (in…

A: Original mass of Na-24 sample = 26.6 mg Half life = 4 hours Mass of sample after 1 day and 4 hours…

Q: s the rate constant (in min−1) for the decomposition of fluorine-18?   min−1 (b) If a sample of…

A: Radioactive decay is first order reaction  Hence Half life = 0.693/k k-rate constant of reaction…

Q: The radioactive isotope carbon-14 is used for radiocarbon dating. The half-life of carbon-14 is…

A:

Q: 1.Write the nuclear equation for the radioactive decay of radium-226 by alpha decay.

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Calculate the number of collisions required to slow a neutron from an energy of 2 MeV to a thermal…

A: Number of collisions for light water (H2O) E high = 2 MeV E low = 0.025 eV Calculated value of ξ for…

Q: Platinum has a naturally occurring radioisotope, Platinum – 190, with a half – life of 6.50 x 10"…

A:

Q: 5. TI-201 can be used to assess the damage to the heart muscle in a person who has suffered a heart…

A:

Q: Platinum has a naturally occurring radioisotope, Platinum – 190, with a half – life of 6.50 x 10"…

A: The half-life data given for different isotopes are,

Q: Gold-198 is used in the diagnosis of liver problems. The half-life of 198Au is 2.69 days. If you…

A: Decay reactions are 1st order reactions. Since we know that the relationship between the amount of…

Q: Gold-198 is used in the diagnosis of liver problems. The half-life of 198Au is 2.69 days. If you…

A: Given,  Half-life of Au = t1/2 = 2.69 days  Initial concentration = N0 = 2.8 mg  Time period = t =…

Q: Fluorine-18, which has a half-life of 110 min, is used in PET scans. If 129 mg of fluorine-18 is…

A: Given information:Initial concentration of fluorine-18 is 129 mg.Half-life is 110 minInitial and…

Q: The half-life of 98AU is 2.7 days. If you begin with 5.6 mg of this gold isotope, what mass remains…

A: Half-life is the time required for the reaction to be half completed. It is denoted by t1/2 . For 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: Fluorine-18 used in PET scans has a half-life of 110 min. If a 100.0 mg sample of the radioisotope…

A:

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

A:

Q: 8.0mg of a radioisotope of half-life 30 minutes is used for 12 minutes. What is the amount of the…

A:

Q: QB - An alien visited our planet in year 5305 and found that humans have long gone from this planet…

A: Given: Mass of 226Ra = 2.5 g. Mass of 206Pb = 6.8 g. And the half-life of decay = 1640 years.

Q: Phosphorus-32 has a half-life of 14.0 daysdays. Starting with 2.00 gg of 32P32P, how many grams will…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: A solidified lava flow containing zircon mineral crystals is present in a sequence of rock layers…

A:

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.