Question 1

The principal quantum number designates the size of the orbital.

Accepted Answer

A) True 
 B)False

Question 2

According to the Aufbau principle,the most stable arrangement of electrons places them in degenerate orbitals with the same spin.

Accepted Answer

A) True 
 B)False

Question 3

Calculate the wavelength of a neutron that has a velocity of 200.cm/s.(mass of a neutron = 1.675 × 10-27 kg and h = 6.63 × 10-34 J • s)

Accepted Answer

A)  1.98 × 10-9 m
B)  216 nm
C)  1.8 × 1050 m
D)  198 nm
E)  5.05 mmF) All of the above
G) C) and D)

Question 4

In the __________ series,nf = 1 and you observe the ultraviolet region of the electromagnetic spectrum.

Accepted Answer

The answer of In the __________ series,nf = 1 and...

Question 5

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 × 102 nm? (c= 3.00 × 108 m/s; h = 6.63 × 10-34 J • s; NA = 6.022 × 1023 /mole)

Accepted Answer

A)  256 kJ
B)  1.71 × 105 J
C)  4.72 × 10-43 J
D)  12.4 kJ
E)  2.12 × 1042 JF) B) and C)
G) A) and D)

Question 6

What type of configuration specifies the arrangement of electrons in the orbitals of an atom?

Accepted Answer

A)  Heisenberg configuration
B)  Nuclear configuration
C)  Atomic configuration
D)  Proton configuration
E)  Electron configurationF) C) and D)
G) B) and C)

Question 7

What is the electron configuration for tungsten?

Accepted Answer

A)  1s22s22p63s23p64s23d104p65s24d105p66s24f145d6
B)  1s22s22p63s23p64s23d104p65s24d105p66s14f145d5
C)  1s22s22p63s23p64s23d104p65s24d105p66s24f145d4
D)  1s22s22p63s23p64s23d104p65s24d105p66s24f145d7
E)  1s22s22p63s23p54s23d104p65s24d105p66s24f145d7F) A) and D)
G) C) and D)

Question 8

A neutral atom in its ground state contains 28 electrons.This element is considered a __________ element,and has _______ electrons in orbitals with l = 2.

Accepted Answer

A)  main group,8
B)  actinide,10
C)  main group,10
D)  transition,10
E)  transition,8F) A) and B)
G) B) and D)

Question 9

A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s.What is his wavelength at this speed if his mass is 84.5 kg ? (h = 6.63 × 10-34 J • s)

Accepted Answer

A)  7.31 × 10-37 m
B)  3.26 × 10-37 m
C)  5.08 × 10-30 m
D)  1.34 × 10-30 m
E)  None of these choices is correct.F) B) and E)
G) C) and E)

Question 10

a.de Broglie

Accepted Answer

b.The equation is a quantitati...

Question 11

Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to the greatest energy.

Accepted Answer

A)  radio,infrared,ultraviolet,gamma rays
B)  radio,ultraviolet,infrared,gamma rays
C)  gamma rays,infrared,radio,ultraviolet
D)  gamma rays,ultraviolet,infrared,radio
E)  infrared,ultraviolet,radio,gamma raysF) C) and D)
G) B) and E)

Question 12

Calculate the wavelength associated with a 20Ne+ ion moving at a velocity of 2.0 × 105 m/s.The atomic mass of Ne-20 is 19.992 amu.(1 amu = 1.66 × 10-24 g and h = 6.63 × 10-34 J • s)

Accepted Answer

A)  1.0 × 10-13 m
B)  1.0 × 10-16 m
C)  1.0 × 10-18 m
D)  9.7 × 1012 m
E)  2.0 × 10-13 cmF) All of the above
G) A) and D)

Question 13

Select the correct electron configuration for Te (Z = 52) .

Accepted Answer

A)  [Kr]5s25p64d8
B)  [Kr]5s25d105p4
C)  [Kr]5s24d105p6
D)  [Kr]5s24f14
E)  [Kr]5s24d105p4F) A) and D)
G) A) and E)

Question 14

Calculate the wavelength,in nanometers,of the light emitted by a hydrogen atom when its electron falls from the n = 7 to the n = 4 principal energy level.Recall that the energy levels of the H atom are given by En = -2.18 × 10-18 J (1/n2) .(c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s)

Accepted Answer

A)  4.45 × 10-20 nm
B)  2.16 × 10-6 nm
C)  9.18 × 10-20 nm
D)  1.38 × 1014 nm
E)  2.17 × 103 nmF) None of the above
G) B) and D)

Question 15

The de Broglie equation predicts that the wavelength (in m) of a proton moving at 1000.m/s is ________________.(h = 6.63 × 10-34 J • s; mass of a proton = 1.673 × 10-24 g)

Accepted Answer

A)  3.96 × 10-10 m
B)  3.96 × 10-7 m
C)  2.52 × 106 m
D)  2.52 × 109 m
E)  > 1010 mF) A) and B)
G) C) and D)

Question 16

___________ is the quantum number which describes the shape of an atomic orbital.

Accepted Answer

The angula...

Question 17

What is the correct electron configuration for a germanium (Ge) atom?

Accepted Answer

A)  1s22s22p63s23p64s24p2
B)  1s22s22p63s23p64s23d104p2
C)  1s22s22p63s23p2
D)  1s22s23s23p5
E)  None of the answers is correct.F) B) and D)
G) All of the above

Question 18

Hund's rule states that the most stable arrangement of electrons in orbitals of equal energy is the one in which the number of electrons with parallel spin is ______________.

Accepted Answer

A)  minimized
B)  nullified
C)  neutral
D)  maximized
E)  not relevantF) A) and B)
G) A) and E)

Question 19

Which of the following is a correct set of quantum numbers for an electron in a 3d orbital?

Accepted Answer

A)  n = 3,l = 0,ml = -1
B)  n = 3,l = 1,ml = +3
C)  n = 3,l = 2,ml = 3
D)  n = 3,l = 3,ml = +2
E)  n = 3,l = 2,ml = -2F) A) and B)
G) C) and D)

Question 20

What is defined as the distance between identical points on successive waves?

Accepted Answer

A)  frequency
B)  amplitude
C)  magnitude
D)  wavelength
E)  lightF) C) and D)
G) A) and D)

Exam 6: Quantum Theory and the Electronic Structure of Atoms

In the __________ series,nf = 1 and you observe the ultraviolet region of the electromagnetic spectrum.

Correct AnswerverifiedShow Answer

What type of configuration specifies the arrangement of electrons in the orbitals of an atom?

Correct AnswerverifiedShow Answer

What is defined as the distance between identical points on successive waves?

Correct AnswerverifiedShow Answer

According to the Aufbau principle,the most stable arrangement of electrons places them in degenerate orbitals with the same spin.

Correct AnswerverifiedShow Answer

Which of the following is a correct set of quantum numbers for an electron in a 3d orbital?

Correct AnswerverifiedShow Answer

The principal quantum number designates the size of the orbital.

Correct AnswerverifiedShow Answer

___________ is the quantum number which describes the shape of an atomic orbital.

Correct AnswerverifiedThe angula...View AnswerShow Answer

Calculate the wavelength,in nanometers,of the light emitted by a hydrogen atom when its electron falls from the n = 7 to the n = 4 principal energy level.Recall that the energy levels of the H atom are given by En = -2.18 × 10-18 J (1/n2) .(c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s)

Correct AnswerverifiedShow Answer

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 × 102 nm? (c= 3.00 × 108 m/s; h = 6.63 × 10-34 J • s; NA = 6.022 × 1023 /mole)

Correct AnswerverifiedShow Answer

A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s.What is his wavelength at this speed if his mass is 84.5 kg ? (h = 6.63 × 10-34 J • s)

Correct AnswerverifiedShow Answer

Calculate the wavelength of a neutron that has a velocity of 200.cm/s.(mass of a neutron = 1.675 × 10-27 kg and h = 6.63 × 10-34 J • s)

Correct AnswerverifiedShow Answer

A neutral atom in its ground state contains 28 electrons.This element is considered a __________ element,and has _______ electrons in orbitals with l = 2.

Correct AnswerverifiedShow Answer

What is the electron configuration for tungsten?

Correct AnswerverifiedShow Answer

Calculate the wavelength associated with a 20Ne+ ion moving at a velocity of 2.0 × 105 m/s.The atomic mass of Ne-20 is 19.992 amu.(1 amu = 1.66 × 10-24 g and h = 6.63 × 10-34 J • s)

Correct AnswerverifiedShow Answer

Select the correct electron configuration for Te (Z = 52) .

Correct AnswerverifiedShow Answer

Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to the greatest energy.

Correct AnswerverifiedShow Answer

The de Broglie equation predicts that the wavelength (in m) of a proton moving at 1000.m/s is ________________.(h = 6.63 × 10-34 J • s; mass of a proton = 1.673 × 10-24 g)

Correct AnswerverifiedShow Answer

a.de Broglie

Correct Answerverifiedb.The equation is a quantitati...View AnswerShow Answer

Hund's rule states that the most stable arrangement of electrons in orbitals of equal energy is the one in which the number of electrons with parallel spin is ______________.

Correct AnswerverifiedShow Answer

What is the correct electron configuration for a germanium (Ge) atom?

Correct AnswerverifiedShow Answer

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The angula...
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Calculate the wavelength,in nanometers,of the light emitted by a hydrogen atom when its electron falls from the n = 7 to the n = 4 principal energy level.Recall that the energy levels of the H atom are given by En = -2.18 × 10^-1⁸ J (1/n²) .(c = 3.00 × 10⁸ m/s; h = 6.63 × 10^-34 J • s)

Correct Answer
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What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 × 10² nm? (c= 3.00 × 10⁸ m/s; h = 6.63 × 10^-34 J • s; N_A = 6.022 × 10²³ /mole)

Correct Answer
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A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s.What is his wavelength at this speed if his mass is 84.5 kg ? (h = 6.63 × 10^-34 J • s)

Correct Answer
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Calculate the wavelength of a neutron that has a velocity of 200.cm/s.(mass of a neutron = 1.675 × 10^-27 kg and h = 6.63 × 10^-34 J • s)

Correct Answer
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A neutral atom in its ground state contains 28 electrons.This element is considered a ____ element,and has _ electrons in orbitals with l = 2.

Correct Answer
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Calculate the wavelength associated with a ²⁰Ne⁺ ion moving at a velocity of 2.0 × 10⁵ m/s.The atomic mass of Ne-20 is 19.992 amu.(1 amu = 1.66 × 10^-24 g and h = 6.63 × 10^-34 J • s)

Correct Answer
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Correct Answer
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The de Broglie equation predicts that the wavelength (in m) of a proton moving at 1000.m/s is ________________.(h = 6.63 × 10^-34 J • s; mass of a proton = 1.673 × 10^-24 g)

Correct Answer
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b.The equation is a quantitati...
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