Chapter 2 Atoms, Molecules, and Ions
1) The scientist who determined the magnitude of the electric charge on the electron was F F F F F F F F F F
A) John Dalton. F
B) Robert Millikan. F
C) J. J. Thomson.
F F
D) Henry Moseley. F
E) J. Burdge.
F
Answer: B Difficult F F F
y: 1 Easy
F F
Topic: Components of Matter B
F F F F F
loom's: 1. Remember Subtopic:
F F F
Structure of the Atom Gradable F F F F
: automatic
F
Accessibility: Keyboard Navigation F F
2) When J. J. Thomson discovered the electron, what physical property of the electron did h e
F F F F F F F F F F F F F F F F
measure?
A) its charge, eF F
B) its charge-to-mass ratio, e/m
F F F
C) its temperature, T
F F
D) its mass, m F F
E) its atomic number, Z
F F F
Answer: B Difficult F F F
y: 1 Easy
F F
Topic: Components of Matter B
F F F F F
loom's: 2. Understand Subtopic:
F F F F
Structure of the Atom Gradable F F F F
: automatic
F
Accessibility: Keyboard Navigation F F
3) Which field of study made a big contribution toward understanding the composition of th e
F F F F F F F F F F F F F F F
atom?
A) Electricity
B) Radiation
C) Solution chemistry F
D) Electrochemistry
E) Quantum mechanics F
Answer: B Difficult F F F
y: 2 Medium
F F
Topic: Components of Matter B
F F F F F
loom's: 2. Understand Subtopic:
F F F
Structure of the Atom Gradable F F F F
: automatic
F
Accessibility: Keyboard Navigation F F
,4) Which of the following is a type of radioactive radiation that has no charge and is unaffecte d
F F F F F F F F F F F F F F F F F F
by external electric or magnetic fields?
F F F F F
A) α rays F
B) β rays F
C) γ rays F
D) δ rays F
E) ε rays F
Answer: C Difficult F F F
y: 1 Easy
F F
Topic: Components of Matter B
F F F F F
loom's: 2. Understand Subtopic:
F F F F
Structure of the Atom Gradable F F F F
: automatic
F
Accessibility: Keyboard Navigation F F
5) Which of the following is a type of radioactive radiation that consists of positively charge d
F F F F F F F F F F F F F F F F
particles and is deflected away from the positively charged plate?
F F F F F F F F F
A) α rays F
B) β rays F
C) γ rays F
D) δ rays F
E) ε rays F
Answer: A Difficult F F F
y: 2 Medium
F F
Topic: Components of Matter B
F F F F F
loom's: 2. Understand Subtopic:
F F F
Structure of the Atom Gradable F F F F
: automatic
F
Accessibility: Keyboard Navigation F F
6) Which of the following is a type of radioactive radiation that consists of electrons and i s
F F F F F F F F F F F F F F F F F
deflected away from the negatively charged plate?
F F F F F F
A) α rays F
B) β rays F
C) γ rays F
D) δ rays F
E) ε rays F
Answer: B Difficult F F F
y: 1 Easy
F F
Topic: Components of Matter B
F F F F F
loom's: 2. Understand F F
Subtopic: Structure of the Atom; Atomic Theories Gr
F F F F F F F F
adable: automatic F
Accessibility: Keyboard Navigation F F
7) Which of these scientists developed the nuclear model of the atom?
F F F F F F F F F F
A) John Dalton F
B) Robert Millikan F
C) J. J. Thomson F F
,D) Henry Moseley F
E) Ernest Rutherford F
Answer: E Difficult F F F
y: 1 Easy
F F
Topic: Components of Matter B
F F F F F
loom's: 1. Remember F F
Subtopic: Structure of the Atom; Atomic Theories Gr
F F F F F F F F
adable: automatic F
Accessibility: Keyboard Navigation F F
8) Rutherford's experiment with alpha particle scattering by gold foil established that
F F F F F F F F F F
A) positive charge not evenly distributed throughout an atom.
F F F F F F F
B) electrons have a negative charge. F F F F
C) electrons have a positive charge. F F F F
D) atoms are made of protons, neutrons, and electrons.
F F F F F F F
E) protons are 1840 times heavier than electrons.
F F F F F F
Answer: A Difficult F F F
y: 1 Easy
F F
Topic: Components of Matter B
F F F F F
loom's: 2. Understand Subtopic:
F F F
Structure of the Atom Gradable F F F F
: automatic
F
Accessibility: Keyboard Navigation F F
9) Who is credited with measuring the mass/charge ratio of the electron?
F F F F F F F F F F
A) Dalton
B) Chadwick
C) Thomson
D) Millikan
E) Rutherford
Answer: C Difficult F F F
y: 1 Easy
F F
Bloom's: 1. Remember SubtopiF F F F
c: Structure of the Atom Gradab
F F F F F F
le: automatic
F
Accessibility: Keyboard Navigation F F
10) Who is credited with first measuring the charge of the electron?
F F F F F F F F F F
A) Dalton
B) Gay-Lussac
C) Thomson
D) Millikan
E) Rutherford
Answer: D Difficult F F F
y: 1 Easy
F F
Topic: Components of Matter B
F F F F F
loom's: 1. Remember Subtopic:
F F F F
Structure of the Atom Gradable
F F F F
, : automatic
F
Accessibility: Keyboard Navigation F F
11) Millikan's oil-drop experiment F F
A) established the charge on an electron. F F F F F
B) showed that all oil drops carried the same charge.
F F F F F F F F
C) provided support for the nuclear model of the atom.
F F F F F F F F
D) suggested that some oil drops carried fractional numbers of electrons.
F F F F F F F F F
E) suggested the presence of a neutral particle in the atom.
F F F F F F F F F
Answer: A Difficult F F F
y: 1 Easy
F F
Topic: Components of Matter B
F F F F F
loom's: 2. Understand Subtopic:
F F F
Structure of the Atom Gradable F F F F
: automatic
F
Accessibility: Keyboard Navigation F F
12) Who is credited with discovering the atomic nucleus?
F F F F F F F
A) Dalton
B) Gay-Lussac
C) Thomson
D) Chadwick
E) Rutherford
Answer: E Difficult F F F
y: 1 Easy
F F
Topic: Components of Matter B
F F F F F
loom's: 1. Remember F F
Subtopic: Structure of the Atom; Atomic Theories Gr
F F F F F F F F
adable: automatic F
Accessibility: Keyboard Navigation F F
13) Which one of the following statements about atoms and subatomic particles is correct?
F F F F F F F F F F F F
A) Rutherford discovered the atomic nucleus by bombarding gold foil with electrons.
F F F F F F F F F F
B) The proton and the neutron have identical masses.
F F F F F F F
C) The neutron's mass is equal to that of a proton plus an electron.
F F F F F F F F F F F F
D) A neutral atom contains equal numbers of protons and electrons.
F F F F F F F F F
E) An atomic nucleus contains equal numbers of protons and neutrons.
F F F F F F F F F
Answer: D Difficult F F F
y: 2 Medium
F F
Topic: Components of Matter B
F F F F F
loom's: 2. Understand F F
Subtopic: Structure of the Atom; Atomic Theories Gr
F F F F F F F F
adable: automatic F
Accessibility: Keyboard Navigation F F