What happens if a neutron is ejected from a nucleus?
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What happens if a neutron is ejected from a nucleus?
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- ms tions urse 4. (P7) The isotope Silver-107 undergoes a gamma decay. Write the reaction equation and determine the identity of the daughter nucleus. (P19) A nucleus of element 114 is produced by fusing calcium - 48 with plutonium - 244. Write the reaction equation assuming three neutrons are also released. 5. EC (P20) The most abundant isotope of lithium, Li-7, contains 3 protons and 4 neutrons and has a mass of 7.01600 u. What is the mass defect for this nucleus in atomic mass units? In Kg?Phosphorus has one stable isotope, 31P. The isotope 32P is a neutron-rich radioactive isotope that is used in nuclear medicine. What is the likely daughter nucleus of 32P decay?What is the energy released when three alpha particles combine to form 12C?
- A and B are fresh apples. Apple A is strongly irradiated by nuclear radiation for 1 hour. Apple B is not irradiated. Afterward, in what ways are apples A and B different?b) Complete the following decay reaction by identifying both the temporary nucleus (??) and the end product (?) that it decays into. In this case, sodium-23 is bombarded with protons, forming a short-lived nucleus which quickly undergoes alpha decay. 2Na+H → (??) → (⁄?) + ª Enter the chemical symbol for the temporary nucleus: Enter the mass number for the end product, A = Enter the atomic number for the end product, Z = Enter the chemical symbol for the end product: AV A/ AV 10A 56-kg sphere of U-235 constitutes a critical mass. If the sphere were flattened into a pancake shape, would it still be critical? Explain.
- 15. Consider the following nuclear reaction and identify the missing entity in the balanced reaction. 232Th 228Ra + ?? a) He b) +ie c) -e d) n e) ipQ3: The table shows two isotopes of potassium and two isotopes of calcium. Type of emission Mass of neutral atom / u Number of electrons Number of protons Number of neutrons Total mass/u Mass defect/ u Binding energy / J Mass of the electron = 0.000549 u Mass of the proton = 1.007276 u Mass of the neutron = 1.008665 u TI ***** LEG 39K Stable 38.96371 SE nda 42K ß decay a) Use data about potassium-42 to explain the concept of mass defect. 3000 41.9624 19 19 23 42.34797 0.38557 5.76 x 10-11 De RAP 39 Ca ßt decay 38.9707 440 **** ****** D 42 Ca stable 41.95863The actual fission reactions that release energy in a nuclear power plant are about A) one-third from uranium-235 and two-thirds from plutonium-239. B) two-thirds from uranium-235 and one-third from uranium-239. C) one-third from uranium-235 and two-thirds from uranium-239. D) two-thirds from uranium-235 and one-third from plutonium-239.
- What isotope is produced when Np-239 emits a beta particle?What is the effect of placing small amounts of fissionable isotopes with large amounts of U-238?18. Which of the following are true regarding beta minus decay? (Select all that apply) emits a neutrino the nucleus emits a high-energy electron emits an antineutrino the nucleus emits a high-energy positron