LRA 211 Final Review Part 2 Exam
Questions and Answers (Rated A+)
Smallest unit of measurement, basic building block of matter. - correct answer
✅atom
is also a measure of the amount of energy necessary to split an atom (break it
apart) - correct answer ✅Binding energy
An atom has defined energy levels, each at a different distance from the nucleus
called - correct answer ✅Electron shells
______ of an atom refers to the number of protons it contains in its nucleus -
correct answer ✅The atomic number
is the number of protons and neutrons an atom has in its nucleus - correct
answer ✅The atomic mass number
_______ are the simplest forms of substances that compose matter - correct
answer ✅Elements
Two or more atoms bonded together form a - correct answer ✅molecule
combinations of elements bonded together. - correct answer ✅chemical
compounds
refers to elements whose atoms have the same number of protons but a different
number of neutrons. - correct answer ✅isotope
,LRA 211 Final Review Part 2 Exam
Questions and Answers (Rated A+)
refers to elements whose atoms have the same number of neutrons but a
different number of protons. - correct answer ✅isotone
Atoms in each period have the same number of - correct answer ✅electron
shells
Atoms in each group have the same number of ______ in the outermost shell -
correct answer ✅electrons
is based on two atoms sharing electrons that then orbit both nuclei - correct
answer ✅Covalent bonding
is based on the attraction of opposing charges. - correct answer ✅Ionic bonding
is very similar in that it has no mass, carries energy in waves as electric and
magnetic disturbances in space, and travels at the speed of light - correct answer
✅electromagnetic radiation
Electromagnetic radiation is a form of energy that originates from the - correct
answer ✅atom
refers to the maximum height of a wave. - correct answer ✅The amplitude
refers to the number of waves that pass a given point per second - correct answer
✅Frequency
, LRA 211 Final Review Part 2 Exam
Questions and Answers (Rated A+)
used to calculate the change in the intensity (quantity) of radiation reaching the
image receptor with changes in distance. - correct answer ✅inverse square law
is a general term for the process by which an atom with excess energy in its
nucleus emits particles and energy to regain stability. - correct answer
✅Radioactivity
This process of a radioactive element giving off excess energy and particles to
regain stability is known as - correct answer ✅radioactive decay.
Elements that are composed of atoms with unstable nuclei are said to be - correct
answer ✅radioactive.
current heats the filament to a point of incandescence (white hot), and electrons
are literally boiled off of the filament by thermionic emission. The focusing cup
forms them into a cloud called - correct answer ✅space charge
higher energy level - correct answer ✅excitation
infrared radiation - correct answer ✅heat
This process of outer-shell electrons filling inner-shell vacancies continues down
the line, creating a cascading effect called a - correct answer ✅characteristic
cascade
Questions and Answers (Rated A+)
Smallest unit of measurement, basic building block of matter. - correct answer
✅atom
is also a measure of the amount of energy necessary to split an atom (break it
apart) - correct answer ✅Binding energy
An atom has defined energy levels, each at a different distance from the nucleus
called - correct answer ✅Electron shells
______ of an atom refers to the number of protons it contains in its nucleus -
correct answer ✅The atomic number
is the number of protons and neutrons an atom has in its nucleus - correct
answer ✅The atomic mass number
_______ are the simplest forms of substances that compose matter - correct
answer ✅Elements
Two or more atoms bonded together form a - correct answer ✅molecule
combinations of elements bonded together. - correct answer ✅chemical
compounds
refers to elements whose atoms have the same number of protons but a different
number of neutrons. - correct answer ✅isotope
,LRA 211 Final Review Part 2 Exam
Questions and Answers (Rated A+)
refers to elements whose atoms have the same number of neutrons but a
different number of protons. - correct answer ✅isotone
Atoms in each period have the same number of - correct answer ✅electron
shells
Atoms in each group have the same number of ______ in the outermost shell -
correct answer ✅electrons
is based on two atoms sharing electrons that then orbit both nuclei - correct
answer ✅Covalent bonding
is based on the attraction of opposing charges. - correct answer ✅Ionic bonding
is very similar in that it has no mass, carries energy in waves as electric and
magnetic disturbances in space, and travels at the speed of light - correct answer
✅electromagnetic radiation
Electromagnetic radiation is a form of energy that originates from the - correct
answer ✅atom
refers to the maximum height of a wave. - correct answer ✅The amplitude
refers to the number of waves that pass a given point per second - correct answer
✅Frequency
, LRA 211 Final Review Part 2 Exam
Questions and Answers (Rated A+)
used to calculate the change in the intensity (quantity) of radiation reaching the
image receptor with changes in distance. - correct answer ✅inverse square law
is a general term for the process by which an atom with excess energy in its
nucleus emits particles and energy to regain stability. - correct answer
✅Radioactivity
This process of a radioactive element giving off excess energy and particles to
regain stability is known as - correct answer ✅radioactive decay.
Elements that are composed of atoms with unstable nuclei are said to be - correct
answer ✅radioactive.
current heats the filament to a point of incandescence (white hot), and electrons
are literally boiled off of the filament by thermionic emission. The focusing cup
forms them into a cloud called - correct answer ✅space charge
higher energy level - correct answer ✅excitation
infrared radiation - correct answer ✅heat
This process of outer-shell electrons filling inner-shell vacancies continues down
the line, creating a cascading effect called a - correct answer ✅characteristic
cascade
