11) Plutonium-239 undergoes alpha decay as shown. a) Find the energy released as a result of the decay b) If you start with 3.00 kg of Pu-239, how many alpha particles will be emitted (approximately) after thirty thousand years? 239 Pu 94 U 235 + He 24,000 years
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- 4. What is the energy released/absorbed in this nuclear reaction 4N+H³C + 3He? (The atomic mass of 14 Nis 14.003074 u, and that of 1³C is 13.003355 u) MeVTechnetium-99 (half-life = 6.0 h) is used in medical imaging. How many half-life's would go by in 34 h?a) Nuclear fusion reactions power the Sun and other stars. i) Explain what is meant by the term fusion when describing a nuclear reaction. ii) In stars, the proton-proton reaction dominates. The first step is 2H → D+e+Q. Given the masses 1.00784 amu for hydrogen, 2.01410 amu for deuterium and 0.00055 amu for an electron, calculate the energy Q released, giving your answer in amu. [5 marks]
- All the nuclides below undergo nuclei decay, write an equation for each process with an explanation. a) complete and explain the alpha decay for the below nuclides. i) AX → ii) 238U →>> 92 b) complete and explain the ß decay for the below nuclides. i) IN → ii) ¹4C → Completed forms to be made available for external moderation. c) complete and explain the B* decay for the below nuclides. i) 4X → ii) ¹3/N →3. (07.03 MC) The isotope cobalt-60 has a nuclear mass of 59.933820 u. Calculate the binding energy per nucleon of cobalt-60 using the following information. Mass of Proton: 1.007825 u Mass of Neutron: 1.008665 u 1 u = 931.5 MeVQuestion 13 What is the nuclear equation for 22 Ra (alpha decay) a. Ra → Po+ ¿He 88 224p b. Ra → 2Rn + He 224 88 220 86 c. Ra → Rn + ¿He 224 88 d. 2Ra → 28TH + ¿He 224 O a O b Previous
- 5. What is the energy released in this B+ nuclear reaction Al Mg+e? (The atomic mass of Al is 23.999939 u 13- and that of Mg is 23.985041 u) MevQuestion 4 Use the following data to calculate the binding energy per nucleon in MeV of the Rhodium-103 nuclide Mass of Rh atom = 102.905503 u 103 45 %3D Mass of proton = 1.007276 u Mass of neutron = 1.008664 u %3D Mass of electron = 0.00054858 u %3D 1u = 931.494 MeV [2.2] Question 5