,DOWNLOAD THE Test Bank for Essentials of Radiographic Physics and Imagi
mn mn mn mn mn mn mn mn mn mn
ng 3rd Edition Johnston
mn mn mn
Chapter 02: Structure of the Atom
Johnston/Fauber: Essentials of Radiographic Physics and Imaging, 3rd Edition
MULTIPLE CHOICE
1. The earliest atomic theory is generally associated with
a. Bohr
b. Leucippus
c. Democritus
d. Dalton
ANS: B
Although his theory was somewhat vague, Leucippus is most often the earliest person
associated with atomic theory.
2. The word atom is derived from the Greek word atomos, meaning
a. nuclear
b. small
c. indivisible
d. invisible
ANS: C
The Greek word atomos means “indivisible.”
3. In the early 1800s English chemist John Dalton theorized that
a. elements form compounds
b. atoms are unique to each element in size and mass
c. a chemical reaction results from atoms being rearranged
d. all of these
ANS: D
As a result of his experiments, John Dalton theorized that elements form compounds, atoms
are unique to each element in size and mass, and that a chemical reaction results from atoms
being rearranged.
4. Discovery of the electron is attributed to
a. Dalton
b. Bohr
c. Thomson
d. Rutherford
ANS: C
Joseph John “J.J.” Thomson determined that the electron was a negatively charged part of
the atom.
5. The “plum pudding model” is associated with
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
mynursytest.store
,DOWNLOAD THE Test Bank for Essentials of Radiographic Physics and Imagi
mn mn mn mn mn mn mn mn mn mn
ng 3rd Edition Johnston mn mn mn
ANS: D m n m n
Based on the physical arrangement of raisins in a plum pudding, Thomson described the a
mn mn mn mn mn mn mn mn mn mn mn mn mn mn
tom and surrounding negatively charged particles (electrons).
mn mn mn mn mn mn
6. The earliest atomic theory based on an arrangement similar to the solar system is attribut
mn mn mn mn mn mn mn mn mn mn mn mn mn mn
ed to mn
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS: B m n m n
Rutherford developed the theory that the atom consisted of a very dense nucleus with small
mn mn mn mn mn mn mn mn mn mn mn mn mn mn mn
electrons rotating around, similar to the sun and planets.
mn mn mn mn mn mn mn mn
7. The most commonly known modern atomic theory was developed by
mn mn mn mn mn mn mn mn mn
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS: A m n m n
Niels Bohr refined Rutherford’s atomic theory, based on the solar system, into the most co
mn mn mn mn mn mn mn mn mn mn mn mn mn mn
mmonly known atomic theory today.
mn mn mn mn
8. The three fundamental particles of the atom are the
mn mn mn mn mn mn mn mn
a. element, nucleus, and electron mn mn mn
b. electron, nucleus, and proton mn mn mn
c. neutron, electron, and proton mn mn mn
d. nucleus, proton, and neutron mn mn mn
ANS: C m n m n
The three fundamental components of the atom are the proton, electron, and neutron.
mn mn mn mn mn mn mn mn mn mn mn mn
9. The atomic nucleus contains
mn mn mn
a. protons and neutrons mn mn
b. protons and electrons mn mn
c. electrons and neutrons mn mn
d. all of these mn mn
ANS: A m n m n
The atomic nucleus contains varying amounts of protons and neutrons, depending on the ele
mn mn mn mn mn mn mn mn mn mn mn mn mn
ment.
10. The component of the nucleus that has a positive charge and mass is the
mn mn mn mn mn mn mn mn mn mn mn mn mn
a. electron
b. neutron
c. proton
d. none of these mn mn
mn ANS: C m n
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, DOWNLOAD THE Test Bank for Essentials of Radiographic Physics and Imagi
mn mn mn mn mn mn mn mn mn mn
ng 3rd Edition Johnston mn mn mn
The proton is the part of the nucleus that has a positive charge and mass.
mn mn mn mn mn mn mn mn mn mn mn mn mn mn
11. The component of the nucleus that has mass but no electrical charge is the
mn mn mn mn mn mn mn mn mn mn mn mn mn
a. electron
b. neutron
c. proton
d. none of these mn mn
ANS: B m n m n
The neutron is found in the nucleus; it is very similar to the proton but has no electrical c
mn mn mn mn mn mn mn mn mn mn mn mn mn mn mn mn mn mn
harge (neutral). mn
12. The fundamental component of the atom that has the smallest mass is the
mn mn mn mn mn mn mn mn mn mn mn mn
a. electron
b. neutron
c. proton
d. none of these mn mn
ANS: A m n m n
The electron has significantly less mass than the neutron or proton.
mn mn mn mn mn mn mn mn mn mn
13. The mass of an atom is primarily due to the mass of the
mn mn mn mn mn mn mn mn mn mn mn mn
a. neutrons
b. nucleus
c. electrons
d. protons
ANS: B m n m n
The nucleus, consisting of both protons and neutrons, accounts for the majority of the ma
mn mn mn mn mn mn mn mn mn mn mn mn mn mn
ss of an atom.
mn mn mn
14. If an atom has more protons than electrons, it will
mn mn mn mn mn mn mn mn mn
a. have a negative charge mn mn mn
b. have a positive charge mn mn mn
c. be electrically neutral
mn mn
d. have neither a positive nor negative charge
mn mn mn mn mn mn
ANS: B m n m n
An atom with more protons than electrons will have a positive charge.
mn mn mn mn mn mn mn mn mn mn mn
15. If an atom has more electrons than protons, it will
mn mn mn mn mn mn mn mn mn
a. have a negative charge mn mn mn
b. have a positive charge mn mn mn
c. be electrically neutral
mn mn
d. have neither a positive nor negative charge
mn mn mn mn mn mn
ANS: A m n m n
An atom with more electrons than protons will have a negative charge.
mn mn mn mn mn mn mn mn mn mn mn
16. If an atom has the same number of electrons and protons it will
mn mn mn mn mn mn mn mn mn mn mn mn
a. have a negative charge mn mn mn
mynursytest.store
mn mn mn mn mn mn mn mn mn mn
ng 3rd Edition Johnston
mn mn mn
Chapter 02: Structure of the Atom
Johnston/Fauber: Essentials of Radiographic Physics and Imaging, 3rd Edition
MULTIPLE CHOICE
1. The earliest atomic theory is generally associated with
a. Bohr
b. Leucippus
c. Democritus
d. Dalton
ANS: B
Although his theory was somewhat vague, Leucippus is most often the earliest person
associated with atomic theory.
2. The word atom is derived from the Greek word atomos, meaning
a. nuclear
b. small
c. indivisible
d. invisible
ANS: C
The Greek word atomos means “indivisible.”
3. In the early 1800s English chemist John Dalton theorized that
a. elements form compounds
b. atoms are unique to each element in size and mass
c. a chemical reaction results from atoms being rearranged
d. all of these
ANS: D
As a result of his experiments, John Dalton theorized that elements form compounds, atoms
are unique to each element in size and mass, and that a chemical reaction results from atoms
being rearranged.
4. Discovery of the electron is attributed to
a. Dalton
b. Bohr
c. Thomson
d. Rutherford
ANS: C
Joseph John “J.J.” Thomson determined that the electron was a negatively charged part of
the atom.
5. The “plum pudding model” is associated with
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
mynursytest.store
,DOWNLOAD THE Test Bank for Essentials of Radiographic Physics and Imagi
mn mn mn mn mn mn mn mn mn mn
ng 3rd Edition Johnston mn mn mn
ANS: D m n m n
Based on the physical arrangement of raisins in a plum pudding, Thomson described the a
mn mn mn mn mn mn mn mn mn mn mn mn mn mn
tom and surrounding negatively charged particles (electrons).
mn mn mn mn mn mn
6. The earliest atomic theory based on an arrangement similar to the solar system is attribut
mn mn mn mn mn mn mn mn mn mn mn mn mn mn
ed to mn
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS: B m n m n
Rutherford developed the theory that the atom consisted of a very dense nucleus with small
mn mn mn mn mn mn mn mn mn mn mn mn mn mn mn
electrons rotating around, similar to the sun and planets.
mn mn mn mn mn mn mn mn
7. The most commonly known modern atomic theory was developed by
mn mn mn mn mn mn mn mn mn
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS: A m n m n
Niels Bohr refined Rutherford’s atomic theory, based on the solar system, into the most co
mn mn mn mn mn mn mn mn mn mn mn mn mn mn
mmonly known atomic theory today.
mn mn mn mn
8. The three fundamental particles of the atom are the
mn mn mn mn mn mn mn mn
a. element, nucleus, and electron mn mn mn
b. electron, nucleus, and proton mn mn mn
c. neutron, electron, and proton mn mn mn
d. nucleus, proton, and neutron mn mn mn
ANS: C m n m n
The three fundamental components of the atom are the proton, electron, and neutron.
mn mn mn mn mn mn mn mn mn mn mn mn
9. The atomic nucleus contains
mn mn mn
a. protons and neutrons mn mn
b. protons and electrons mn mn
c. electrons and neutrons mn mn
d. all of these mn mn
ANS: A m n m n
The atomic nucleus contains varying amounts of protons and neutrons, depending on the ele
mn mn mn mn mn mn mn mn mn mn mn mn mn
ment.
10. The component of the nucleus that has a positive charge and mass is the
mn mn mn mn mn mn mn mn mn mn mn mn mn
a. electron
b. neutron
c. proton
d. none of these mn mn
mn ANS: C m n
mynursytest.store
, DOWNLOAD THE Test Bank for Essentials of Radiographic Physics and Imagi
mn mn mn mn mn mn mn mn mn mn
ng 3rd Edition Johnston mn mn mn
The proton is the part of the nucleus that has a positive charge and mass.
mn mn mn mn mn mn mn mn mn mn mn mn mn mn
11. The component of the nucleus that has mass but no electrical charge is the
mn mn mn mn mn mn mn mn mn mn mn mn mn
a. electron
b. neutron
c. proton
d. none of these mn mn
ANS: B m n m n
The neutron is found in the nucleus; it is very similar to the proton but has no electrical c
mn mn mn mn mn mn mn mn mn mn mn mn mn mn mn mn mn mn
harge (neutral). mn
12. The fundamental component of the atom that has the smallest mass is the
mn mn mn mn mn mn mn mn mn mn mn mn
a. electron
b. neutron
c. proton
d. none of these mn mn
ANS: A m n m n
The electron has significantly less mass than the neutron or proton.
mn mn mn mn mn mn mn mn mn mn
13. The mass of an atom is primarily due to the mass of the
mn mn mn mn mn mn mn mn mn mn mn mn
a. neutrons
b. nucleus
c. electrons
d. protons
ANS: B m n m n
The nucleus, consisting of both protons and neutrons, accounts for the majority of the ma
mn mn mn mn mn mn mn mn mn mn mn mn mn mn
ss of an atom.
mn mn mn
14. If an atom has more protons than electrons, it will
mn mn mn mn mn mn mn mn mn
a. have a negative charge mn mn mn
b. have a positive charge mn mn mn
c. be electrically neutral
mn mn
d. have neither a positive nor negative charge
mn mn mn mn mn mn
ANS: B m n m n
An atom with more protons than electrons will have a positive charge.
mn mn mn mn mn mn mn mn mn mn mn
15. If an atom has more electrons than protons, it will
mn mn mn mn mn mn mn mn mn
a. have a negative charge mn mn mn
b. have a positive charge mn mn mn
c. be electrically neutral
mn mn
d. have neither a positive nor negative charge
mn mn mn mn mn mn
ANS: A m n m n
An atom with more electrons than protons will have a negative charge.
mn mn mn mn mn mn mn mn mn mn mn
16. If an atom has the same number of electrons and protons it will
mn mn mn mn mn mn mn mn mn mn mn mn
a. have a negative charge mn mn mn
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