2. What is Q-value of the nuclear reaction? Drive the formula for threshold energy.
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- Explain each of the following in terms of nuclear stability or which is stable, support your answer) a. 84 Po 212decays by alpha emission b. Bi 214 decays by beta emissionDetermine the energy released when a Uranium-235 nucleus under fission to Te-134, Zr-99, and two neurons. A table of isotopes lists the binding energy per nucleon on the nuclei of U-235, Te-134, and Zr-99 as 7.69 MeV, 8.38MeV, and 8.54MeV, respectively.6. One of the many isotopes used in cancer treatment is 798 Au, with a half-life of 2.70 d. Determine the mass of this isotope that is required to give an activity of 225 Ci. mg cer16 cei t would be
- 7. In a nuclear accident, a lab worker receives a dose of D rads of radiation of x rays having an RBE of 1. If instead he had been exposed to the same amount of energy from alpha particles having an RBE of 20, his exposure would have been (there may be more than one correct choice) A. D rads. B. 20D rads. C. D rem. D. 20D rem.Identify the daughter nuclide, the type of decay (for natural transmutations) and the nuclear reactionQuestion 9 Why is a moderator required in a thermal nuclear reactor core? A To prevent overheating of the fuel rods. B To absorb surplus neutrons. C To shield the surrounding area from dangerous gamma radiation. To reduce the kinetic energy of thermal neutrons.