Question 1

List the following types of radiation from lowest frequency to highest frequency: microwave,X ray,ultraviolet,visible,and infrared

Accepted Answer

A)  microwave 
B)  X ray 
C)  visible 
D)  infrared 
E)  infrared < visible < microwave < ultraviolet < X rayF) A) and B)
G) A) and E)

Question 2

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm? (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s; NA = 6.022 × 1023 moles-1)

Accepted Answer

A)  6.46 × 10-16 J
B)  6.46 × 10-25 J
C)  2.46 × 10-4 J
D)  12.4 kJ
E)  246 kJF) C) and D)
G) B) and E)

Question 3

If one electron is added to the outer shell of chlorine,to which element would the configuration be similar?

Accepted Answer

The answer of If one electron is added to the...

Question 4

How many electrons are in the 4p orbitals of selenium?

Accepted Answer

A)  0
B)  2
C)  4
D)  5
E)  6F) B) and E)
G) A) and B)

Question 5

The energy of a photon is directly proportional to the wavelength of the radiation.

Accepted Answer

A) True 
 B)False

Question 6

The size of an atomic orbital is associated with

Accepted Answer

A)  the principal quantum number (n) .
B)  the angular momentum quantum number (l) .
C)  the magnetic quantum number (ml) .
D)  the spin quantum number (ms) .
E)  the angular momentum and magnetic quantum numbers,together.F) A) and D)
G) None of the above

Question 7

What wavelength,in nm,can strike a metal surface and eject an electron at 1.89 × 10-19 J if the binding energy of the metal is 289 kJ/mol?

Accepted Answer

A)  1.89 × 10-19 nm
B)  2.75 nm
C)  189 nm
D)  290 nm
E)  297 nmF) A) and B)
G) A) and C)

Question 8

Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level.Recall that for hydrogen En = -2.18 × 10-18 J(1/n2 ) .(h = 6.63 × 10-34 J • s)

Accepted Answer

A)  3.08 × 1015 s-1
B)  1.03 × 108 s-1
C)  2.06 × 1014 s-1
D)  1.35 × 10-51 s-1
E)  8.22 × 1014 s-1F) B) and E)
G) A) and D)

Question 9

Select the correct electron configuration for sulfur (Z = 16) .

Accepted Answer

A)  1s21p62s22p6
B)  1s22s22p83s23p4
C)  1s22s22p83s23p2
D)  1s22s22p63s23p4
E)  1s22s22p63s23d4F) A) and D)
G) C) and D)

Question 10

___________ is the quantum number which describes the orientation of the orbital in space.

Accepted Answer

The magnet...

Question 11

The FM station KDUL broadcasts music at 99.1 MHz.Find the wavelength of these waves.(c = 3.00 × 108 m/s)

Accepted Answer

A)  1.88 × 10-2 m
B)  0.330 m
C)  3.03 m
D)  5.33 × 102 m
E)  > 103 mF) D) and E)
G) B) and C)

Question 12

The magnetic quantum number designates the shape of the atomic orbital.

Accepted Answer

A) True 
 B)False

Question 13

a.Planck

Accepted Answer

b.A blackbody can only emit or...

Question 14

Which of the following is a correct set of quantum numbers for an electron in a 5f orbital?

Accepted Answer

A)  n = 5,l = 3,ml = +1
B)  n = 5,l = 2,ml = +3
C)  n = 4,l = 3,ml = 0
D)  n = 4,l = 2,ml = +1
E)  n = 5,l = 4,ml = 3.F) A) and B)
G) A) and C)

Question 15

A radio wave has a frequency of 8.6 × 108 Hz.What is the energy of one photon of this radiation? (h = 6.63 × 10-34 J • s)

Accepted Answer

A)  7.7 × 10-43 J
B)  2.3 × 10-34 J
C)  5.7 × 10-25 J
D)  1.7 × 10-16 J
E)  > 10-15 JF) B) and E)
G) C) and D)

Question 16

How many electrons are there in the 2nd principal energy level (n = 2) of a phosphorus atom?

Accepted Answer

A)  3
B)  5
C)  6
D)  8
E)  10F) A) and C)
G) A) and D)

Question 17

The most stable arrangement of electrons in orbitals of equal energy is the one in which the number of electrons with the same spin is maximized is

Accepted Answer

A)  the Pauli exclusion principle.
B)  Bohr's equation.
C)  Hund's rule.
D)  de Broglie's relation.
E)  Dalton's atomic theory.F) A) and D)
G) A) and E)

Question 18

An atom in its ground state contains 33 electrons.How many of these electrons are in p orbitals?

Accepted Answer

A)  15
B)  12
C)  3
D)  33
E)  None of theF) C) and E)
G) A) and B)

Question 19

According to the Heisenberg uncertainty principle,if the uncertainty in the speed of an electron is 3.5 × 103 m/s,the uncertainty in its position (in m) is at least ___________.(mass of an electron = 9.11 × 10-28 g)

Accepted Answer

A)  1.7 × 10-8 m
B)  6.6 × 10-8 m
C)  17 m
D)  66 m
E)  None of these choices is correct.F) B) and D)
G) B) and C)

Question 20

Use the Rydberg equation to calculate the frequency of a photon absorbed when the hydrogen atom undergoes a transition from n1 = 2 to n2 = 4.(R = 1.096776 × 107 m-1; c = 3.00 × 108 m/s)

Accepted Answer

A)  2.06 × 106 s-1
B)  2.74 × 106 s-1
C)  6.17 × 1014 s-1
D)  8.23 × 1014 s-1
E)  > 1015 s-1F) A) and D)
G) B) and E)

Exam 6: Quantum Theory and the Electronic Structure of Atoms

What wavelength,in nm,can strike a metal surface and eject an electron at 1.89 × 10-19 J if the binding energy of the metal is 289 kJ/mol?

Correct AnswerverifiedShow Answer

The magnetic quantum number designates the shape of the atomic orbital.

Correct AnswerverifiedShow Answer

List the following types of radiation from lowest frequency to highest frequency: microwave,X ray,ultraviolet,visible,and infrared

Correct AnswerverifiedShow Answer

The size of an atomic orbital is associated with

Correct AnswerverifiedShow Answer

How many electrons are there in the 2nd principal energy level (n = 2) of a phosphorus atom?

Correct AnswerverifiedShow Answer

According to the Heisenberg uncertainty principle,if the uncertainty in the speed of an electron is 3.5 × 103 m/s,the uncertainty in its position (in m) is at least ___________.(mass of an electron = 9.11 × 10-28 g)

Correct AnswerverifiedShow Answer

___________ is the quantum number which describes the orientation of the orbital in space.

Correct AnswerverifiedThe magnet...View AnswerShow Answer

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm? (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s; NA = 6.022 × 1023 moles-1)

Correct AnswerverifiedShow Answer

Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level.Recall that for hydrogen En = -2.18 × 10-18 J(1/n2 ) .(h = 6.63 × 10-34 J • s)

Correct AnswerverifiedShow Answer

The FM station KDUL broadcasts music at 99.1 MHz.Find the wavelength of these waves.(c = 3.00 × 108 m/s)

Correct AnswerverifiedShow Answer

Use the Rydberg equation to calculate the frequency of a photon absorbed when the hydrogen atom undergoes a transition from n1 = 2 to n2 = 4.(R = 1.096776 × 107 m-1; c = 3.00 × 108 m/s)

Correct AnswerverifiedShow Answer

How many electrons are in the 4p orbitals of selenium?

Correct AnswerverifiedShow Answer

Which of the following is a correct set of quantum numbers for an electron in a 5f orbital?

Correct AnswerverifiedShow Answer

If one electron is added to the outer shell of chlorine,to which element would the configuration be similar?

Correct AnswerverifiedShow Answer

Select the correct electron configuration for sulfur (Z = 16) .

Correct AnswerverifiedShow Answer

A radio wave has a frequency of 8.6 × 108 Hz.What is the energy of one photon of this radiation? (h = 6.63 × 10-34 J • s)

Correct AnswerverifiedShow Answer

The most stable arrangement of electrons in orbitals of equal energy is the one in which the number of electrons with the same spin is maximized is

Correct AnswerverifiedShow Answer

The energy of a photon is directly proportional to the wavelength of the radiation.

Correct AnswerverifiedShow Answer

a.Planck

Correct Answerverifiedb.A blackbody can only emit or...View AnswerShow Answer

An atom in its ground state contains 33 electrons.How many of these electrons are in p orbitals?

Correct AnswerverifiedShow Answer

What wavelength,in nm,can strike a metal surface and eject an electron at 1.89 × 10^-1⁹ J if the binding energy of the metal is 289 kJ/mol?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

How many electrons are there in the 2^nd principal energy level (n = 2) of a phosphorus atom?

Correct Answer
verified

According to the Heisenberg uncertainty principle,if the uncertainty in the speed of an electron is 3.5 × 10³ m/s,the uncertainty in its position (in m) is at least ___________.(mass of an electron = 9.11 × 10^-28 g)

Correct Answer
verified

Correct Answer
verified
The magnet...
View Answer

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm? (c = 3.00 × 10⁸ m/s; h = 6.63 × 10^-34 J • s; NA = 6.0²² × 10²³ moles^-1)

Correct Answer
verified

Calculate the frequency of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level.Recall that for hydrogen En = -2.18 × 10^-1⁸ J(1/n² ) .(h = 6.63 × 10^-34 J • s)

Correct Answer
verified

The FM station KDUL broadcasts music at 99.1 MHz.Find the wavelength of these waves.(c = 3.00 × 10⁸ m/s)

Correct Answer
verified

Use the Rydberg equation to calculate the frequency of a photon absorbed when the hydrogen atom undergoes a transition from n₁ = 2 to n₂ = 4.(R = 1.096776 × 10⁷ m^-1; c = 3.00 × 10⁸ m/s)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

A radio wave has a frequency of 8.6 × 10⁸ Hz.What is the energy of one photon of this radiation? (h = 6.63 × 10^-34 J • s)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
b.A blackbody can only emit or...
View Answer

Correct Answer
verified