When fewer than 3.75 × 106 americium nuclei remain, the ionization smoke detector will not operate due to insufficient ionization. How much time will pass before there are this many nuclei remaining? A 1720 years B 2150 years C 4300 years D 6880 years

Q: A moon rock collected by a U.S. Apollo mission is estimated to be 4.00 billion years old by…

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Q: For the fission reaction shown below, find the energy (in MeV) that is released. in + 920 1 235 136…

A: Given : Fission Reaction : n01+U92235→S3888r+X54136e+12n01

Q: Q23. When a deuteron (GH) of mass 2.0141u and negligible kinetic energy is absorbed by a lithium…

A: The change in mass is given by ∆m=mH12+mL36i-2mHe4=2.0141u+6.0155u-24.0026u=0.0244u1.66×10-27 kg1u…

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Q: Ruthenium-106 (106 Ru) is used to treat melanoma in the eye. This isotope decays by ẞ emission with…

A: Approach to solving the question: Detailed explanation:Examples: Key references:

Q: What is the mass of 1ci of 227TH? If the half-life is 1.90 years. O m = 1.11x 10-2g O m = 1.21x…

A: T1/2 = 1620 years = 1620 x 3.15 x 107s λ = 0.693/ T1/2 = 0.693/(1620 x 3.15 x 107 s)

Q: The radioactive isotope 243 Am, with a half-life of 432 y, is the active element in many smoke…

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Q: 190- Some nucleus of ¹9X (atomic mass = 189.96182 u) undergoes decay to become (atomic mass =…

A: The mass of the parent nucleus is 189.96182 u. The mass of the daughter nucleus is 189.95844 u.

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Q: The following nuclei have induced fission critical energies as listed below. From these data,…

A: We need to determine if the target Nucleus is fissile or fissionable.

Q: 18 O What is the binding energy per nucleon of the ruther- fordium isotope Rf? Here are some atomic…

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Q: What is the binding energy per nucleon of neon-22 (Z = 10) given that it has a mass defect of…

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Q: element

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Q: 64 The masses of Ni, „Cu and 64 §4Zn ar 28 29 30 is radioactive. Detail the various po of the…

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Q: A particular radioactive material was weighed exactly 1 year ago, showing a mass of 200 g. If the…

A: a) Calculate the decay constant. N(t)=Noe-λt λ=1tlnNoN Substitute the values. λ=1365 daysln200 g7.1…

Q: Consider the Deuterium-Tritium fusion reaction ²H +³H → ˆHe+n How much is the energy released per…

A: Standard values:

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

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Q: What is the binding energy per nucleon of the rutherfordium isotope Rf? Here are some atomic masses…

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Q: Derive an approximate relationship between the energy of α decay and half-life using the following…

A: Given,

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: What is the the total binding energy of o 28NI. It isotope mass is 59.930786 u. The mass 60 of a…

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Q: Which of the following nuclei is very likely to fission by capture of a thermal nuetron ?  Select…

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Q: A radioactive isotope with an intensity (activity) of 100 mCi per vial is delivered to a  hospital.…

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Q: Q23. When a deuteron (;H) of mass 2.0141lu and negligible kinetic energy is absorbed by a lithium…

A: The problem is based on the concept of alpha emission. In this process, the parent nucleus is…

Q: Part A A sample of U (T1 = 1.59 × 10° yr) contains 6.10 x 1018 nuclei. Part B Approximately how many…

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Q: The formation of helium nucleus, from the fusion process of two deuterium nudei is shown as below:…

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Q: An unknown isotope has an atomic number, Z = 15 and atomic mass number, A = 32. It decays via beta…

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A: Given data: The half-life is T1/2=1.59×105 yr. The number of nuclei is n=6.10×1018 nuclei.

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: unlabeled container of radioactive material has an activity of 78 decays/min. Four days later the…

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