Write the balanced nuclear equations for the following: a) Formation of Kr-81 through electron capture b) Formation of Pu-215 by alpha decay c) Thorium-231 decays to form protactinium

Q: The isotope 79Au198 (atomic mass 197.968 u) of gold, which has a half-life of 2.69 days, is used in…

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Q: A radioactive isotope has a half-life of 72.0 min . A sample is prepared that has an initial…

A: (a) Initial radioactive nuclei

Q: 5. How many nuclei of 238 U remain in a rock if the activity registers 270 decays per second? (Note…

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Q: Part A 90 You are examining a sample of rock that contains 1.6x1010 230 Th atoms decay by alpha…

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Q: Indicate whether each of the following reactions is a fission, fusion, or natural radioactivity…

A: To find:fission , fusion and natural radioactivity reactions

Q: The iodine isotope ¹331 is used in hospitals for diagnosis of thyroid function. If 570 µg are…

A: You have posted a question with multiple sub-parts. But as per the guideline we are only be able to…

Q: The stable isotope of sodium is 23Na. (a) Find the total binding energy and the binding energy per…

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Q: The physical half-life of 113m/n (Indium isotope) is 1.7 hours. The init sample has 1.07×1016 atoms…

A: We have givenT1/2=1.7 hInitial number of atoms= N0=1.07×1016atomsInitial mass (m)=2μg

Q: element

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Q: 11 The stability of C with respect to alpha, B*, and B decay is to be determined. Do not consider…

A: Solution:   As per the given data,

Q: 1. An ancient club is found that contains 120 g of pure carbon and has an activity of 7.5 decays per…

A: The expression for the half-life of carbon-14 is written as, Here, λ represents the decay constant…

Q: Determine the nuclear radius (in fm) for each of the following nuclei. a) 126C b) 147N c) 6027Co…

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Q: Given the mass of a radioactive material, phosphorus 32P is 0.60 g and its half-life, T1/2 is 14.3…

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Q: A small building has become accidentally contaminated with radioactivity. The longest-lived material…

A: Given that, Atomic mass of Sr90 is am =89.9077 u Mass of substance in sample, m = 250 g Final…

Q: A purified sample of Mo-99 contains 370 million Bq. a. What mass does this represent if the…

A: It's a moderate-level question of radioactivity. It's a little bit confusing because 1st question…

Q: The atomic mass of Mg is 24.985837 u, and the atomic mass of Al is 24.990429 u. (i) Identify which…

A: Given :     1225Mg = 24.985837 u 1325Al = 24.990429 u  Radioactive decay is a process in which a…

Q: 4. An ancient club is found that contains 150 g of pure carbon and has an activity of 4 decays per…

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Q: Living matter has 1.3 x 10-10 % of its carbon in the form of C-14 which has a half-life of  5730 yr.…

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Q: A radioactive isotope has a half-life of 72.0 min. A sample is prepared that has an initial activity…

A: Given Data: The half-life of a radioactive isotope is, t1/2=72.0 min The initial activity is,…

Q: Use the following data to calculate the binding energy per nucleon in MeV of the Rhodium-103 nuclide…

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Q: The half-life for the a decay of uranium 2U is 4.47 x 10° yr. Determine the age (in years) of a rock…

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Q: A radioactive sample with a half-life of 5.3 weeks has 1.04e+15 nuclides present in the initial…

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Q: Determine the energy released when a Uranium-235 nucleus under fission to Te-134, Zr-99, and two…

A: Given, Binding energy of Binding energy of Binding energy of

Q: 4. What is the energy released/absorbed in this nuclear reaction 4N+H³C+2He? (The atomic mass of 14…

A: Solution    Given data714N+12H=613C+23HeWhat is energy released/ absorbed in this nuclear reaction?

Q: a) What is the decay constant of fluorine-17 if its half-life is known to be 66.0 s? = b) How long…

A: Given value---  Half life time of F-17 (t 1/2) = 66 sec. We have to find---  What is the decay…

Q: a) What is the decay constant of fluorine-17 if its half-life is known to be 66.0 s? λ = b) How…

A: Given value--- Half life time of F -17 (t 1/2) = 66 sec. We have to find--- What is the decay…

Q: 3. An ancient club is found that contains 150 g of pure carbon and has an activity of 4.5 decays per…

A: Half life of carbon = 5700 yearsAvogardro number one year = 3.153x107sWe know thatand we know that…

Q: Question 4 Use the following data to calculate the binding energy per nucleon in MeV of the…

A: Given Data: Mass of atom (ma) = 102.905503 u.Mass of proton (mp) = 1.007276 u.Mass of neutron (mn) =…

Q: Radioactive potassium-40 has a half-life of 4.2 x 1016 s. a) Calculate the decay constant of…

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Q: Francium -233 has a half-life of 21.80min.  I).  How many nuclei are initially present in a 25.0mg…

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Q: 198 79 7. One of the many isotopes used in cancer treatment is isotope that is required to give an…

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Q: What is the half -life of potassium-40 if 1.70×10^19 nuclei have an activity of 300 Bq

A: Number of nuclei is Activity is Find:Half-life.

Q: Uranium-235 decays spontaneously by nucleon emission. a) Write a balanced equation to show the decay…

A: To find :  Balanced question for the decay of uranium-235  To form uranium-234  To form thorium-231…

Q: 1. Suppose that the average power consumption per year in a typical house is 300 W. What initial…

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Q: Question 4 Use the following data to calculate the binding energy per nucleon in MeV of the…

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