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Nuclear Physics
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College Physics Reasoning and Relationships

Physics & Astronomy

Quiz 30 :
Nuclear Physics

Quiz 30 :
Nuclear Physics

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The nucleus of an atom is made up of which of the following?
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B

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The experiment, which gave the first evidence for the existence of the atomic nucleus, involved which of the following?
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D

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The atomic number of a given element is equivalent to which of the following?
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C

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Rutherford's experiments involving the use of alpha particle beams directed onto thin metal foils demonstrated the existence of which of the following?
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The atomic mass number of a nucleus is equivalent to which of the following numbers?
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The isotope 64Zn has a nuclear radius of 4.8 1015 m. Approximately what is the nuclear radius of the isotope 125Te?
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The isotope 64Zn has a nuclear radius of 4.8 1015 m. Which of the following is the mass number of an isotope for which the nuclear radius is 6.8 1015 m?
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If there are 146 neutrons in 238U, how many neutrons are found in the nucleus of 233U?
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The mass of 12C is 12 u, where 1 u = 1.660559 1027 kg. This mass is equal to:
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For every stable nucleus except hydrogen, if the number of nucleons is doubled, the quantity that will change least is the:
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The molecular mass for chlorine is not an integer multiple of the molecular mass of hydrogen but is about 35.5 times the molecular mass of hydrogen. This is primarily because:
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Certain stars at the end of their lives are thought to collapse, combining their protons and electrons together to form a neutron star. Such a star could be thought of as a giant atomic nucleus. If a star of mass equal to M = 4.00 1030 kg collapsed into neutrons (mn = 1.67 1027 kg), what would be the radius of such a star? (Hint: r = r0A1/3, where r0 = 1.20 1015 m.)
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The relationship img , where A is the mass number of a nucleus and r is it radius, implies which of the following about nuclei?
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What potential difference is required to accelerate the nucleus of the atom img , initially at rest, to a kinetic energy of 4.0 MeV?
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Sample #1 is made from an isotope with decay constant img and sample #2 is made from an isotope with decay constant img , where img . Which of the following statements must be true?
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Two different nuclei emit alpha particles, the energy released in each of these decays being the same. Which of the following has the lowest resulting kinetic energy?
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Alpha radiation is in fact which of the following?
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Gamma radiation is in fact which of the following?
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Neglecting recoil of the gold nucleus, how much kinetic energy must an alpha particle (charge = 2 1.6 1019 C) have to approach to within 1.95 1014 m of a gold nucleus (charge = 79 1.6 1019 C)? (ke = 8.99 109 Nm2/C2 and 1 MeV = 1.6 1013 J)
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A radioactive material initially is observed to have an activity of 1000 decays/sec. If nine hours later it is observed to have an activity of 125 decays/s, what is its half-life?
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