©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:09PM. A+
Radiation Protection Chapter 2 Exam
Questions With Correct Answers 100%
Verified.
Atomic number - Answer✔number of protons
Atomic mass - Answer✔number of protons and neutrons
Electromagnetic spectrum - Answer✔The full range of frequencies and wavelengths of
electromagnetic waves
Hertz (Hz) or cycles per second - Answer✔units for frequency
meters - Answer✔units for wavelength
eV - Answer✔units for energy
The higher the frequency... - Answer✔...the shorter the wavelengths and higher the energy
The shorter the frequency... - Answer✔...the longer the wavelength and lower the energy
The electromagnetic spectrum is divided into: - Answer✔Ionizing radiation and
Nonionizing radiation
Radiations classified as ionizing - Answer✔X-rays
Gamma rays
High-energy ultraviolet radiation (energy higher than 10 eV)
Radiations classified as nonionizing - Answer✔Low-energy ultraviolet radiation
Visible light
Infrared rays
Microwaves
1
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:09PM. A+
Radio waves
2 Types of radiation - Answer✔Ultrasound
Electromagnetic Wave
Ionization - Answer✔orbital electrons are removed from an atom due to sufficient energy
Radiation dose - Answer✔The amount of energy transferred to electrons by ionizing radiation;
ONLY applies to ionizing types of radiation
Characteristics of Alpha Particles - Answer✔--A type of particulate radiation
--Not strong enough to pass through paper
--very heavy
--2 protons and 2 neutrons
--positive charge of +2
--have potential of transferring very substantial kinetic energy to electrons of other atoms
--Harmless externally, but damaging to tissue such as lungs if deposited in the body
Where are alpha particles emitted from? - Answer✔the nuclei of *very heavy* elements such
as uranium and plutonium during the process of radioactive decay
Characteristics of Beta particles - Answer✔--A type of particulate radiation
--Strong enough to pass through paper
--8,000x lighter and can penetrate deeper than alpha rays
--charge of -1
--less interaction and therefore can penetrate matter more deeply
Sufficient absorption for beta particles - Answer✔1-cm-thick piece of wood or
1-mm-thick lead shield
For energies less than 2 MeV
Isotope - Answer✔Atoms with the same number of protons but a different number of neutrons
in the nucleus
Radioisotope - Answer✔unstable isotope
2
Radiation Protection Chapter 2 Exam
Questions With Correct Answers 100%
Verified.
Atomic number - Answer✔number of protons
Atomic mass - Answer✔number of protons and neutrons
Electromagnetic spectrum - Answer✔The full range of frequencies and wavelengths of
electromagnetic waves
Hertz (Hz) or cycles per second - Answer✔units for frequency
meters - Answer✔units for wavelength
eV - Answer✔units for energy
The higher the frequency... - Answer✔...the shorter the wavelengths and higher the energy
The shorter the frequency... - Answer✔...the longer the wavelength and lower the energy
The electromagnetic spectrum is divided into: - Answer✔Ionizing radiation and
Nonionizing radiation
Radiations classified as ionizing - Answer✔X-rays
Gamma rays
High-energy ultraviolet radiation (energy higher than 10 eV)
Radiations classified as nonionizing - Answer✔Low-energy ultraviolet radiation
Visible light
Infrared rays
Microwaves
1
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 11:09PM. A+
Radio waves
2 Types of radiation - Answer✔Ultrasound
Electromagnetic Wave
Ionization - Answer✔orbital electrons are removed from an atom due to sufficient energy
Radiation dose - Answer✔The amount of energy transferred to electrons by ionizing radiation;
ONLY applies to ionizing types of radiation
Characteristics of Alpha Particles - Answer✔--A type of particulate radiation
--Not strong enough to pass through paper
--very heavy
--2 protons and 2 neutrons
--positive charge of +2
--have potential of transferring very substantial kinetic energy to electrons of other atoms
--Harmless externally, but damaging to tissue such as lungs if deposited in the body
Where are alpha particles emitted from? - Answer✔the nuclei of *very heavy* elements such
as uranium and plutonium during the process of radioactive decay
Characteristics of Beta particles - Answer✔--A type of particulate radiation
--Strong enough to pass through paper
--8,000x lighter and can penetrate deeper than alpha rays
--charge of -1
--less interaction and therefore can penetrate matter more deeply
Sufficient absorption for beta particles - Answer✔1-cm-thick piece of wood or
1-mm-thick lead shield
For energies less than 2 MeV
Isotope - Answer✔Atoms with the same number of protons but a different number of neutrons
in the nucleus
Radioisotope - Answer✔unstable isotope
2
