Physics A multiple-choice quiz consists of: 10 QuestionsQuestions are selected randomly from a collection of 20 questions. More Questions You will get deferent questions every time you take the quiz. Correct AnswersThere could be more than one correct answer, select all that apply.Skip QuestionsYou are allowed to scroll backward and forward before submitting your answers.10 MinutesThe quiz has a time limit. Time's up You can still submit your answers after the allowed period of time has ended . When ready, click Next to start the quiz. Name (Required) Email (Optional) Twitter (Optional) 1. Which of the following best defines isotopes of an element? Atoms with same number of protons and neutrons but different number of electrons. Atoms with same number of protons, electrons and neutrons. Atoms with same number of neutrons and electrons but different number of protons. Atoms with same number of protons and electrons but different number of neutrons. None 2. When only image quality is considered, the best possible distance between the collimator and the patient’s body for a gamma-camera equipped with HRES collimator is: 10 cm Half the collimator diameter 1 in Contact None 3. Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting ionizing radiation. The emission is described as spontaneous meaning: The nucleus decays after collision with shielding material The nucleus decays without collision with another particle or atom The nucleus decays after collision with another particle or atom The nucleus decays without collision with shielding material None 4. Which of the following radionuclides has the highest kinetic energy of the positron? F-18. Rb-82. C-11. N-13. None 5. The minimum amount of energy needed to overcome the forces holding the atom together is called: Holding energy Binding energy Thermal energy Kinetic energy None 6. Which of the following is the principal decay mode of Tc-99m? Beta minus Electron capture Pair production Isomeric transition None 7. An atom with an unstable nucleus is called a: Radiopharmaceutical Radiochemical Radionuclide Radio wave None 8. In isomeric transition decay, the extra energy in the nucleus is released by the emission of: Gamma photons Electrons Neutrons X-rays None 9. An alpha particle is identical to the nucleus of a helium atom. Alpha particles: Travel unlimited distances Are not charged Are used for radionuclide therapy Are smaller than beta particles None 10. The nucleus is composed of two types of particles called: Neutrons and protons Quarks and protons Protons and electrons Electrons and quarks None 1 out of 10 Time's upTime is Up! By Nasser AlMutairi|2021-03-31T11:37:09+03:00March 31st, 2021| شارك هذه الصفحة FacebookXLinkedInWhatsAppPinterestEmail About the Author: Nasser AlMutairi Senior Nuclear Medicine Specialist at Hafar Al-Batin Central Hospital, Founder of NuclearMed Website. Leave A Comment Cancel replyComment Δ
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