9. The existence of the neutrino was
postulated to account for which basic conservation laws during the
beta decay process?
a. conservation of energy b. conservation of
momentum
c. Both choices a and b are valid. d. None of the
above choices are valid.
10. A radioactive isotope that emits a
gamma quantum will change in what respect?
a. Atomic number increases by one. b. Atomic
number decreases by one.
c. Atomic mass number decreases by one. d. None
of the above choices are valid.
11. A radioactive isotope that emits
an alpha particle will change in what respect?
a. Atomic number decreases by four. b. Mass
number decreases by four.
c. Both choices a and b are valid. d. None of the
above choices are valid.
12. What particle is emitted when
20Na decays to 20Ne? (atomic numbers of Na
and Ne are, respectively, 11 and 10)
a. alpha b. beta (electron) c.
beta (positron) d. gamma quantum
9. The existence of the neutrino was postulated to account for which basic conservation laws during...
25. Which process decreases the atomic sumbmi of an elervent bhy w A alpha particle emission B beta particle emnsion C positron emesen D. gamma ray emission E none of these 26. Which process inceeases the atomc amber of an elmen by one? A. gamma rey emission B alpha particle emiss ion C beta particle emission D. positron emission E. electron capture 27. Which process decreases the atomic number of an element ty one? A both beta particle emission and...
13. The nuclear reaction taking place in nuclear reactors currently in operation at a nuclear power plant is called: A. Nuclear fission B. Nuclear fusion C. Radioactive isotope decay D. Breaking radiation E. None of the above 14. What is "chain reaction" of nuclear reactions? A. the joining together of protons and neutrons to form atomic nuclei continuously B. the joining together of light nuclei to form heavy ones continuously C. the successive fissions of heavy nuclei induced by neutrons...
19. An isotope with a high value of N/Z will end to decay through: a. alpha decay b. beta decay C. positron decay d. electron capture e. gamma decay 20.Identify the missing species in the following nuclear transmutation: 246Cm +12C 41n+? a. 254No b. 258No c. 238Cf d. 238Th e. none of the above 21. The isotope 42Sc is unstable because: a. the number of neutrons is too large in relation to the number of protons b. the number of...
The gamma ray emission from the decay of cobalt-60 is usedin cancer therapies, cobalt-60 decays by the emission of two gamma rays followed by beta emission. What is the final product of_27^60 Co_29^58 cu_26^58 fe_28^60 Ni_26^59 Fe A sodium nucleus,_11^23 Na is bombarded with alpha panicles to form a radioactive nuclide. This product nuclide can decay by several routes. Which of the following sets of products does not represent a potential route of decay of the product nuclide?_10^21 Ne +_1^2...
need help with this. thanks Please answer the following questions by replying: 1. Why is it that during alpha emission, the atomic number decreases by two, and the mass number decreases by four? In your answer you should consider what an alpha particle is. 2. In beta emission, the atom loses an electron, yet the atomic number increase by one and the mass number stays the same. How is this possible? It may help if you consider what happens to...
Which particle is most likely to interact with your hand? Select one: a. Alpha particle b. Beta particle c. Gamma particle d. Neutrino
9. Select the nuclide that completes the following nuclear reaction. 1K 4+? A) EK B) 3 C) A D) C E) Ca 10. Select the nuclide that completes the following nuclear reaction. | TRAI + B + ?. A) Mg B) ALC) Mg D) si E) si 11. Select the nuclide that completes the following nuclear reaction. Co B + ? A) Feb) Nic) Fe D) CO E) Fe 19 In Cd + ? In the equation above, what particle...
17. When francium 223 87 Fr undergoes alpha decay, what daughter nucleus is produced? 222 A) Rn 86 B) 233 Ra 88 C) 221 Ро 84 219 D) At 85 E) 221 At 85 18. When krypton 89 Kr undergoes betat decay, what daughter nucleus is produced? 36 89 85 88 89 B) Br C) Se D) Sr E) Rb 35 34 38 37 A) 88 Rb 37 236 19. Which one of the following occurs when Ra undergoes beta...
Problem 1 Concept: Elementary Particles 0 Not finished! Level: Basic Emission of which particle below will decrease the mass number by 1, but have no affect on the atomic number? a gamma photon a neutron a beta particle an alpha particle Problem 2 Concept: Nuclear reactions 0 Not finished! Level: Basic When 59Cu undergoes positron emission, what is the immediate nuclear product? 59Zn 58Cu 59Ni 58Ni Problem 3 Concept: Radioactivity 0 Not finished! Level: Basic Which of the nuclides is...
all 20. Ammonia is synthesized industrially by the reaction of nitrogen and hydrogen in the presence of an iron catalyst according to the reaction equation below. What effect would removing the iron catalyst have on this reaction? Fe 3H,(g) + N2(g) 2NH;(g) A) The reaction would shift to the right, producing more ammonia. B) The reaction rate would increase. C) The reaction would shift to the left, and consume ammonia. D) The reaction rate would decrease. E) There would be...