Download ExamView - Unit 6 Review.tst

Name: ________________________ Class: ___________________ Date: __________
ID: A
Unit 6 Review
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1) All of the orbitals in a given subshell have the same value as the ____ quantum number.
A) principal
B) angular momentum
C) magnetic
D) A and B
E) B and C
____
2) Which one of the following is not a valid value for the magnetic quantum number of an electron in a 5d
subshell?
A) 2
B) 3
C) 0
D) 1
E) –1
____
3) An electron cannot have the quantum numbers n = ____, l = ____, m l = ____.
A) 6, 1, 0
B) 3, 2, 3
C) 3, 2, –2
D) 1, 0, 0
E) 3, 2, 1
____
4) Which one of the quantum numbers does not result from the solution of the Schrodinger equation?
A) principal
B) azimuthal
C) magnetic
D) spin
E) angular momentum
____
5) Which quantum numbers must be the same for the orbitals that they designate to be degenerate in a one-electron
system (such as hydrogen)?
A) n, l, and ml
B) n and l only
C) l and ml
D) ml only
E) n only
____
6) Which one of the following orbitals can hold two electrons?
A) 2px
B) 3s
C) 4dxy
D) all of the above
E) none of the above
1
Name: ________________________
ID: A
____
7) Which of the following is a valid set of four quantum numbers? (n, l, m l, ms)
A) 2, 1, 0, +1/2
B) 2, 2, 1, –1/2
C) 1, 0, 1, +1/2
D) 2, 1, +2, +1/2
E) 1, 1, 0, –1/2
____
8) Which electron configuration represents a violation of the Pauli exclusion principle?
A)
B)
C)
D)
E)
____
9) The ground state electron configuration of Ga is ____.
A) 1s22s23s23p64s23d104p1
B) 1s22s22p63s23p64s24d104p1
C) 1s22s22p63s23p64s23d104p1
D) 1s22s22p63s23p64s23d104d1
E) [Ar]4s23d11
2
Name: ________________________
ID: A
____ 10) Which electron configuration represents a violation of Hund's rule for an atom in its ground state?
A)
B)
C)
D)
E)
____ 11) How many different principal quantum numbers can be found in the ground-state electron configuration of
nickel?
A) 2
B) 3
C) 4
D) 5
E) 6
____ 12) Ham radio operators often broadcast on the 6-meter band. The frequency of this electromagnetic radiation is
____ MHz.
A) 500
B) 200
C) 50
D) 20
E) 2.0
____ 13) What is the frequency of light (s –1) that has a wavelength of 1.23  10–6 cm?
A) 3.69
B) 2.44  1016 s–1
C) 4.10  10–17 s–1
D) 9.62  1012 s–1
E) 1.04  10–13 s–1
____ 14) What is the wavelength of light (nm) that has a frequency 4.62  1014 s–1?
A) 932 nm
B) 649 nm
C) 1.39  1023 nm
D) 1.54  10–3 nm
E) 1.07  106 nm
3
Name: ________________________
ID: A
____ 15) The energy of a photon of light is ____ proportional to its frequency and ____ proportional to its wavelength.
A) directly, directly
B) inversely, inversely
C) inversely, directly
D) directly, inversely
E) indirectly, not
____ 16) The energy of a photon that has a wavelength of 8.33  10–6 m is ____ J.
A) 2.20  10–26
B) 3.60  1013
C) 2.39  10–20
D) 2.7  109
E) 4.5  10–25
____ 17) The energy of a photon that has a wavelength of 12.3 nm is ____ J.
A) 1.51  10–17
B) 4.42  10–23
C) 1.99  10–25
D) 2.72  10–50
E) 1.62  10–17
____ 18) Of the following, ____ radiation has the longest wavelength and ____ radiation has the greatest energy.
gamma
ultraviolet
visible
A) ultraviolet, gamma
B) visible, ultraviolet
C) gamma, gamma
D) visible, gamma
E) gamma, visible
____ 19) What color of visible light has the longest wavelength?
A) blue
B) violet
C) red
D) yellow
E) green
____ 20) Of the following, ____ radiation has the shortest wavelength and ____ radiation has the greatest energy.
gamma
ultraviolet
visible
A) gamma, visible
B) visible, gamma
C) visible, ultraviolet
D) ultraviolet, gamma
E) gamma, gamma
4
Name: ________________________
ID: A
____ 21) The n = 2 to n = 6 transition in the Bohr hydrogen atom corresponds to the ____ of a photon with a
wavelength of ____ nm.
A) emission, 410
B) absorption, 410
C) absorption, 660
D) emission, 94
E) emission, 390
____ 22) There are ____ orbitals in the third shell.
A) 25
B) 4
C) 9
D) 16
E) 1
____ 23) There are ____ orbitals in the second shell.
A) 1
B) 2
C) 4
D) 8
E) 9
____ 24) Each d-subshell can accommodate a maximum of ____ electrons.
A) 6
B) 2
C) 10
D) 3
E) 5
____ 25) When the electron in a hydrogen atom moves from n = 5 to n = 2, light with a wavelength of ________ nm is
emitted.
A) 93.8
B) 410
C) 487
D) 657
E) 434
Short Answer
1) What wavelengths correspond to the visible region of the electromagnetic spectrum?
2) In the de Broglie formula describing the movement of an electron about the nucleus, the quantity "mv" is called
its ________.
3) A spectrum containing radiation of specific wavelengths is called a(n) ________.
4) The shape of an orbital is defined by the angular momentum quantum number which is represented as letter
________.
5
Name: ________________________
ID: A
5) All of the subshells in a given shell have the same energy in the hydrogen atom. In a many-electron atom, the
subshells in a given shell do not have the same energy. Why?
6) The largest principal quantum number in the ground state electron configuration of francium is ________.
7) The ground state electron configuration of scandium is ________.
8) The electron configuration of the valence electrons of an atom in its ground state is ns 2np3. This atom is a group
________ element.
9) Elements in group ________ have an np 5 electron configuration in the outer shell.
10) The ground state electron configuration of copper is ________.
True/False
Indicate whether the statement is true or false.
____
1) The wavelength of radio waves can be longer than a football field.
____
2) Blackbody radiation is the emission of light from metal surfaces.
____
3) If a hydrogen atom electron jumps from the n=6 orbit to the n=2 orbit, energy is released.
____
4) The square of Schrodinger's wave equation is called an orbital.
____
5) The electron density of the 2s orbital is asymmetric.
____
6) The larger the principal quantum number of an orbital, the lower is the energy of the electrons in that orbital.
____
7) When the value of n is greater than or equal to 3, electrons can reside in d orbitals.
____
8) An NMR spectrum results from photon irradiation in which the nuclear spin alignment is flipped.
6
ID: A
Unit 6 Review
Answer Section
MULTIPLE CHOICE
1) ANS:
OBJ:
2) ANS:
OBJ:
3) ANS:
OBJ:
4) ANS:
OBJ:
5) ANS:
OBJ:
6) ANS:
OBJ:
7) ANS:
OBJ:
8) ANS:
OBJ:
9) ANS:
OBJ:
10) ANS:
OBJ:
11) ANS:
OBJ:
12) ANS:
OBJ:
13) ANS:
OBJ:
14) ANS:
OBJ:
15) ANS:
OBJ:
16) ANS:
OBJ:
17) ANS:
OBJ:
18) ANS:
OBJ:
19) ANS:
OBJ:
20) ANS:
OBJ:
21) ANS:
OBJ:
D
6.5; G2
B
6.5; G2
B
6.5; G2
D
6.5; G2
E
6.5; G2
D
6.7; G2
A
6.7; G2
C
6.8; G2
C
6.8; G2
D
6.8; G2
C
6.9; G2
C
6.1; G4
B
6.1; G4
B
6.1; G4
D
6.2; G4
C
6.2; G4
E
6.2; G4
D
6.2; G2
C
6.2; G2
E
6.2; G2
B
6.3; G4
PTS: 1
DIF: 1
REF: Page Ref: 6.5
PTS: 1
DIF: 1
REF: Page Ref: 6.5
PTS: 1
DIF: 2
REF: Page Ref: 6.5
PTS: 1
DIF: 1
REF: Page Ref: 6.5 | Page Ref: 6.7
PTS: 1
DIF: 1
REF: Page Ref: 6.6
PTS: 1
DIF: 1
REF: Page Ref: 6.7
PTS: 1
DIF: 2
REF: Page Ref: 6.7
PTS: 1
DIF: 2
REF: Page Ref: 6.8
PTS: 1
DIF: 2
REF: Page Ref: 6.8
PTS: 1
DIF: 2
REF: Page Ref: 6.8
PTS: 1
DIF: 1
REF: Page Ref: 6.9
PTS: 1
DIF: 1
REF: Page Ref: 6.1
PTS: 1
DIF: 1
REF: Page Ref: 6.1
PTS: 1
DIF: 1
REF: Page Ref: 6.1
PTS: 1
DIF: 1
REF: Page Ref: 6.2
PTS: 1
DIF: 2
REF: Page Ref: 6.2
PTS: 1
DIF: 2
REF: Page Ref: 6.2
PTS: 1
DIF: 1
REF: Page Ref: 6.2
PTS: 1
DIF: 1
REF: Page Ref: 6.2
PTS: 1
DIF: 1
REF: Page Ref: 6.2
PTS: 1
DIF: 3
REF: Page Ref: 6.3
1
ID: A
22) ANS:
OBJ:
23) ANS:
OBJ:
24) ANS:
OBJ:
25) ANS:
OBJ:
C
6.5; G2
C
6.5; G2
C
6.7; G2
E
6.3; G4
PTS: 1
DIF: 1
REF: Page Ref: 6.5
PTS: 1
DIF: 1
REF: Page Ref: 6.5
PTS: 1
DIF: 1
REF: Page Ref: 6.7
PTS: 1
DIF: 4
REF: Page Ref: 6.3
PTS: 1
OBJ: 6.1; G4
2) ANS:
momentum
DIF: 1
REF: Page Ref: 6.1
PTS: 1
OBJ: 6.2; G2
3) ANS:
line spectrum
DIF: 2
REF: Page Ref: 6.2
PTS: 1
OBJ: 6.3; G2
4) ANS:
l
DIF: 2
REF: Page Ref: 6.3
SHORT ANSWER
1) ANS:
About 400 to 750 nm.
PTS: 1
DIF: 1
REF: Page Ref: 6.5
OBJ: 6.5; G2
5) ANS:
Hydrogen atoms have only one electron. Therefore, in a hydrogen atom, the energy of orbitals depends only
on n. In many-electron atoms, electron-electron repulsion causes the energies of subshells in a given shell to
differ.
PTS: 1
OBJ: 6.7; G2
6) ANS:
7
DIF: 1
REF: Page Ref: 6.7
PTS: 1
OBJ: 6.8; G2
7) ANS:
[Ar]4s23d1
DIF: 1
REF: Page Ref: 6.8
PTS: 1
OBJ: 6.8; G2
DIF: 2
REF: Page Ref: 6.8
2
ID: A
8) ANS:
5A
PTS: 1
OBJ: 6.8; G2
9) ANS:
7A
DIF: 1
REF: Page Ref: 6.8
PTS: 1
OBJ: 6.8; G2
10) ANS:
[Ar]4s13d10
DIF: 1
REF: Page Ref: 6.8
PTS: 1
OBJ: 6.9; G2
DIF: 2
REF: Page Ref: 6.9
PTS: 1
DIF: 1
REF: Page Ref: 6.1
PTS: 1
DIF: 1
REF: Page Ref: 6.2
PTS: 1
DIF: 1
REF: Page Ref: 6.3
PTS: 1
DIF: 1
REF: Page Ref: 6.4
PTS: 1
DIF: 1
REF: Page Ref: 6.5
PTS: 1
DIF: 2
REF: Page Ref: 6.7
PTS: 1
DIF: 2
REF: Page Ref: 6.7
PTS: 1
DIF: 3
REF: Page Ref: 6.8
TRUE/FALSE
1) ANS:
OBJ:
2) ANS:
OBJ:
3) ANS:
OBJ:
4) ANS:
OBJ:
5) ANS:
OBJ:
6) ANS:
OBJ:
7) ANS:
OBJ:
8) ANS:
OBJ:
T
6.1; G2
F
6.2; G2
T
6.3; G2
T
6.4; G2
F
6.5; G2
F
6.7; G2
T
6.7; G2
T
6.8; G2
3
Unit 6 Review [Answer Strip]
A
_____
7)
ID: A
D 10)
_____
D 15)
_____
B 21)
_____
D
_____
1)
C 16)
_____
C
_____
8)
C 22)
_____
B
_____
2)
E 17)
_____
B
_____
3)
D
_____
4)
C 11)
_____
D 18)
_____
C 12)
_____
C 19)
_____
C
_____
9)
E
_____
5)
E 20)
_____
B 13)
_____
D
_____
6)
B 14)
_____
C 23)
_____
C 24)
_____
E 25)
_____
Unit 6 Review [Answer Strip]
T
_____
1)
F
_____
2)
T
_____
3)
T
_____
4)
F
_____
5)
F
_____
6)
T
_____
7)
T
_____
8)
ID: A