What nuclear process is used in commercial nuclear power plants produce energy?

Question

What nuclear process is used in commercial nuclear power plants produce energy? fusion fission metastable induction radiocarbon dating position emission tomography A high degree of stability is predicted for nuclei with which of the following characteristics? high neutron proton ratio (>2) more protons than neutrons even number of protons or neutrons odd number of protons large number of protons (84 or more) Which statement concerning nuclear reactions and chemical reactions is FALSE? Nuclear reactions involve changes in the protons or neutrons in the nucleus of an atom Chemical reactions involve changes in the valence electrons of an atom Nuclear reactions usually result in a change in the identity of the radioactive isotope Nuclear reactions are capable of producing more energy than chemical reactions Chemical reactions always occur much faster than nuclear reactions Which type of radiation emitted by radioactive nuclei is the slowest moving and least penet

Explanation / Answer

51. (b) Fission

52. (c) even number of protons or neutrons

53. (b) all chemical reactions are not resulting in the change of valency electrons of the atom

54. (a) alpha particles having low speed and less penetration than the others.

55. (b) beta emmission

56. (c) 36 years (3 half-lives)

57. (a) zero electrons - He2+ (alpha particals nothing but helium nucleus)

58. (e) calcuim-40

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