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LRA 211 Questions and Correct Answers
Atomic level Ans: The interactions in the x-ray tube that produce
x-rays occur at what level?
Interactions between x-ray futons and the human body occur what
level? Ans: The atomic level
Interactions between x-ray futons exiting the patient to produce
the image interact at what level of the image interceptor to
generate the final image? Ans: Atomic level
Atom Ans: The basic building block of matter described as having
three fundamental components electrons, neutrons and protons
The number of protons in the nucleus of an atom which also
indicates the number of electrons in a stable atom Ans: Atomic
number
Atomic mass number Ans: The number of protons and neutrons
and atom has in its nucleus
Electron Ans: negatively charged particle
Electron Ans: A subatomic particle with one unit of negative
electrical charge and a mass significantly less than that of protons
or neutrons, orbiting the nucleus at high velocities
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Fundamental particles Ans: Protons, neutrons and electrons
Nucleus Ans: The central part of an atom made up of protons and
neutrons, and it is a core around which electrons orbit
Proton Ans: Has one unit of positive electrical charge and a mass
of 1.673x10^-27kg
Proton Ans: A component of the nucleus with one unit of positive
electrical charge, and a specific mass contributing to the atomic
number of an atom
Neutron Ans: no charge
Neutron Ans: Component of the nucleus with no electrical charge
and a specific mass contributing to the majority of an atoms mass
along with protons
Neutron Ans: Has no electrical charge and a mass of 1.675x10^-
27kg
What composes the majority of the mass of an atom? Ans:
protons and neutrons
Electron Ans: Has one unit of negative electrical charge and a
mass of 9.109x10^-31kg
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Electron Ans: Has very little mass yet each one is moving
extremely fast in its orbit, and thus it has a significant kinetic
energy
Alpha particles Ans: Are made up of two protons and two
neutrons and have a positive charge
No net charge Ans: When an atom has an equal number of
protons and electrons
Anion Ans: A negatively charged ion
Cation Ans: A positively charged ion
Binding energy Ans: A measure of the amount of energy
necessary to split an atom
If a particle strikes the nucleus with energy equal to the nucleus
binding energy, what would happen? Ans: The atom could break
apart
Binding energy Ans: A bond based on the attraction between
atoms of opposite charge occurring when one atom gives up an
electron, and another atom takes on that electron becoming an
anion with a negative charge
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LRA 211 Questions and Correct Answers
Atomic level Ans: The interactions in the x-ray tube that produce
x-rays occur at what level?
Interactions between x-ray futons and the human body occur what
level? Ans: The atomic level
Interactions between x-ray futons exiting the patient to produce
the image interact at what level of the image interceptor to
generate the final image? Ans: Atomic level
Atom Ans: The basic building block of matter described as having
three fundamental components electrons, neutrons and protons
The number of protons in the nucleus of an atom which also
indicates the number of electrons in a stable atom Ans: Atomic
number
Atomic mass number Ans: The number of protons and neutrons
and atom has in its nucleus
Electron Ans: negatively charged particle
Electron Ans: A subatomic particle with one unit of negative
electrical charge and a mass significantly less than that of protons
or neutrons, orbiting the nucleus at high velocities
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Fundamental particles Ans: Protons, neutrons and electrons
Nucleus Ans: The central part of an atom made up of protons and
neutrons, and it is a core around which electrons orbit
Proton Ans: Has one unit of positive electrical charge and a mass
of 1.673x10^-27kg
Proton Ans: A component of the nucleus with one unit of positive
electrical charge, and a specific mass contributing to the atomic
number of an atom
Neutron Ans: no charge
Neutron Ans: Component of the nucleus with no electrical charge
and a specific mass contributing to the majority of an atoms mass
along with protons
Neutron Ans: Has no electrical charge and a mass of 1.675x10^-
27kg
What composes the majority of the mass of an atom? Ans:
protons and neutrons
Electron Ans: Has one unit of negative electrical charge and a
mass of 9.109x10^-31kg
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Electron Ans: Has very little mass yet each one is moving
extremely fast in its orbit, and thus it has a significant kinetic
energy
Alpha particles Ans: Are made up of two protons and two
neutrons and have a positive charge
No net charge Ans: When an atom has an equal number of
protons and electrons
Anion Ans: A negatively charged ion
Cation Ans: A positively charged ion
Binding energy Ans: A measure of the amount of energy
necessary to split an atom
If a particle strikes the nucleus with energy equal to the nucleus
binding energy, what would happen? Ans: The atom could break
apart
Binding energy Ans: A bond based on the attraction between
atoms of opposite charge occurring when one atom gives up an
electron, and another atom takes on that electron becoming an
anion with a negative charge
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