DENTAL RADIOGRAPHY 5TH EDITION IANNUCCI TEST BANK

Chapter 02: Radiation Physics Iannucci: Dental Radiography, 5th Edition MULTIPLE CHOICE 1. The fundamental unit of matter is the a. proton. b. neutron. c. electron. d. atom. ANS: D A proton is a subatomic particle; the fundamental unit of matter is the atom. A neutron is a subatomic particle; the fundamental unit of matter is the atom. An electron is a subatomic particle; the fundamental unit of matter is the atom. The fundamental unit of matter is the atom. DIF: Recall REF: Page 8 OBJ: 1 TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysics and radiobiology 2. The nucleus of an atom contains a. protons. b. neutrons. c. protons and neutrons. d. electrons. ANS: C The nucleus of an atom contains neutrons as well as protons. The nucleus of an atom contains protons as well as neutrons. The nucleus of an atom contains protons and neutrons. The nucleus of an atom does not contain electrons; it contains protons and neutrons. DIF: Recall REF: Page 8 OBJ: 2 TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation MSC: NBDHE, 2.0 Obtaining and Interpreting Radiographs | NBDHE, 2.1 Principles of radiophysics and radiobiology 3. Which subatomic particle carries a negative electrical charge? a. A neutron b. A proton c. An electron d. A nucleon ANS: C A neutron does not carry an electrical charge. A proton carries a positive electrical charge. An electron carries a negative electrical charge. A nucleon carries a positive (proton) or no (neutron) electrical charge. DIF: Comprehension REF: Page 8 OBJ: 2 TOP: CDA, RHS, III.B.2. Describe the characteristics of x-radiation