E2 When the daughter nucleus produced in a radioactivedecay is itself unstable, it will eventually decay andform its own daughter nucleus. If the newly formeddaughter nucleus is also unstable, another decay willoccur, and the process will continue until anonradioactive nucleus is formed. Such a series ofradioactive decays is called a decay chain.Part BWhat is the energy E released in the first step of the thonium-232 decay chain? The atomic mass of Th is 232.038054 u andthe atomic mass of Ra is 228.0301069 u. The atomic mass of an alpha particle is 4.002603 uExpress your answer numerically in megaelectron volts.View Available Hint(s)E=SubmitΨΕΙ ΑΣΦ?MeV Jack underwent radiation therapy using a beam ofneutrons to treat a skin cancer on his hand. Hereceived a dose equivalent of 16 mSv that wasabsorbed in 25 g of tissue. The relative biologicaleffectiveness (RBE) of these neutrons is 9.0.Part CWhat absorbed dose of radiation did Jack receive?Express your answer in grays to two significant figures.View Available Hint(s)[5] ΑΣΦSubmitPart B195| ΑΣΦ GWhat was the total energy of the absorbed radiation?Express your answer in joules to two significant figures.►View Available Hint(s)Submait195| ΑΣΦΑ 4 Ĉ??Sv?Suppose Jill, also being treated for skin cancer, received the same absorbed dose, but from an electron beam (beta particles)with an RBE of 1.2. What dose equivalent did she receive?Express your answer in sieverts to two significant figures.View Available Hint(s)GyJ

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Y When the daughter nucleus produced in a radioactive decay is itself unstable, it will eventually decay and form its own daughter nucleus. If the newly formed daughter nucleus is also unstable, another decay will occur, and the process will continue until a nonradioactive nucleus is formed. Such a series of radioactive decays is called a decay chain. Part B What is the energy E released in the first step of the thonum-232 decay chain? The atomic mass of Th is 232.038054 u and the atomic mass of Ra is 228 0301069 u The atomic mass of an alpha particle is 4 002603 u Express your answer numerically in megaelectron volts. View Available Hint(s) E= ΟΙ ΑΣΦ ? MeV

Y When the daughter nucleus produced in a radioactive decay is itself unstable, it will eventually decay and form its own daughter nucleus. If the newly formed daughter nucleus is also unstable, another decay will occur, and the process will continue until a nonradioactive nucleus is formed. Such a series of radioactive decays is called a decay chain. Part B What is the energy E released in the first step of the thonum-232 decay chain? The atomic mass of Th is 232.038054 u and the atomic mass of Ra is 228 0301069 u The atomic mass of an alpha particle is 4 002603 u Express your answer numerically in megaelectron volts. View Available Hint(s) E= ΟΙ ΑΣΦ ? MeV

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter30: Nuclear Energy And Elementary Particles

Section: Chapter Questions

Problem 12P

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Measurements of a certain isotope tell you that the decay rate decreases from 8322 decays/minute to 3162 decays/minute over a period of 4.50 days K ▼ Part A What is the half-life T1/2 of this isotope? Express your answer numerically, in days, to three significant figures. ► View Available Hint(s) —| ΑΣΦΑΛΟ T1/2 = Submit Provide Feedback t O ? days
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Measurements of a certain isotope tell you that the decay rate decreases from 8343 decays/minute to 3070 decays/minute over a period of 3.50 days. Part A What is the half-life T₁/2 of this isotope? Express your answer numerically, in days, to three significant figures. ► View Available Hint(s) T1/2 ΑΣΦ ? days
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Calculate the mass defect (in kg) of 150Nd if it has an observed atomic mass of 149.9208 amu. The mass of a proton and a neutron are 1.0078 and 1.0087 amu, respectively. Express your answers in three decimal places in scientific notation, i.e., 6.022e26 to represent 6.022x1020. No need to include negative sign and units.
Hello please someone help me answer this problem set, thank you! Part A: A particular smoke detector contains 1.05 μCi of 241Am241Am, with a half-life of 458 years. The isotope is encased in a thin aluminum container. Calculate the mass of 241 Am in grams in the detector. Express your answer numerically in grams. Part B: Fears of radiation exposure from normal use of such detectors are largely unfounded. Identify reasons why 241 Am smoke detectors are perfectly safe. Select all that apply a. The penetrating power of αα radiation is limited. b. Ions get trapped by electrodes. c. The amount of americium is very little. d. The number of αα particles leaving the case is low. e. The detector has a plastic cover. f. The detector is housed in an aluminum case.