Question 1

If the energy of a photon is 1.32 × 10-18 J,what is its wavelength in nm (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s) ?

Accepted Answer

A)  1.51 × 10-7 nm
B)  151 nm
C)  1.99 × 1015 nm
D)  1.99 × 1024 nm
E)  None of these choices is correct.F) C) and D)
G) A) and D)

Question 2

_____________ is directly proportional to the frequency of a wave.

Accepted Answer

The answer of _____________ is directly proportional to the frequency...

Question 3

How many electrons are in the 4d orbitals of Tc?

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5F) C) and D)
G) B) and E)

Question 4

What element is represented by the electron configuration 1s22s22p63s23p64s23d104p65s14d10?

Accepted Answer

A)  Ag
B)  Rb
C)  Cd
D)  Sr
E)  CuF) A) and D)
G) B) and E)

Question 5

What is the electron configuration for silicon?

Accepted Answer

A)  1s22s22p63s13p3
B)  1s22s22p63s23p2
C)  1s22s22p63s4
D)  1s22s22p63p4
E)  1s22s22p63s23p3F) A) and B)
G) A) and E)

Question 6

What is the difference in the electron configuration between carbon-14 and carbon-12?

Accepted Answer

There is no difference between the two electron configurations.

Question 7

The shape 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 magnetic and spin quantum numbers,together.F) B) and C)
G) A) and E)

Question 8

Select the arrangement of electromagnetic radiation which starts with the shortest wavelength and increases to longest wavelength.

Accepted Answer

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

Question 9

The unusual electron configuration of Mo indicates the

Accepted Answer

A)  unusual stability of half-filled d-orbitals.
B)  unpredictability of the electron filling patterns of the non-representative elements.
C)  unusually large size of Mo atoms.
D)  greater than expected electronegativity of Mo.E) A) and D)
F) C) and D)

Question 10

Calculate the energy,in joules,required to excite a hydrogen atom by causing an electronic transition from the n = 1 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 ) .

Accepted Answer

A)  2.07 × 10-29 J
B)  2.19 × 105 J
C)  2.04 × 10-18 J
D)  3.27 × 10-17 J
E)  2.25 × 10-18 JF) B) and C)
G) D) and E)

Question 11

In the ___________,electrons are ejected from the surface of a metal exposed to light of a certain minimum frequency.

Accepted Answer

A)  aura effect
B)  photon effect
C)  ritzwald effect
D)  photoelectric effect
E)  None of the answers is correct.F) A) and B)
G) B) and C)

Question 12

Which scientist proposed that energy of radiation is composed of extremely small indivisible packages called quanta? ("Quanta" is the plural of "quantum.")

Accepted Answer

A)  Max Planck
B)  Louis de Broglie
C)  Clinton Davisson
D)  Sir Isaac Newton
E)  Lothan MeyerF) B) and C)
G) A) and E)

Question 13

The electronic structure 1s22s22p63s23p64s23d8 refers to the ground state of

Accepted Answer

A)  Kr.
B)  Ni.
C)  Fe.
D)  Pd.
E)  None of these choices is correct.F) A) and E)
G) A) and B) B

Question 14

Which of the following elements has the largest number of unpaired electrons in the ground state?

Accepted Answer

A)  K
B)  V
C)  S
D)  Si
E)  ClF) A) and C)
G) C) and D)

Question 15

___________ is an attempt to locate a subatomic particle acting as a wave even though it is impossible to know both the momentum and position of the particle simultaneously.

Accepted Answer

The Heisenberg uncertainty principle

Question 16

The solar radiation spectrum peaks at a wavelength of approximately 500 nm.Calculate the energy of one photon of that radiation (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s) .

Accepted Answer

A)  4 × 10-10 J
B)  6 × 1014 J
C)  1 × 10-27 J
D)  2 × 10-25 J
E)  4 × 10-19 JF) B) and E)
G) B) and C)

Question 17

The energy of an electron in the hydrogen atom is determined by

Accepted Answer

A)  the principal quantum number (n) only.
B)  the angular momentum quantum number (l) only.
C)  the principal and angular momentum quantum numbers (n & l) .
D)  the principal and magnetic quantum numbers (n & ml) .
E)  the principal,angular momentum,and magnetic quantum numbers.F) B) and E)
G) B) and D)

Question 18

Select the correct electron configuration for Cu (Z = 29) .

Accepted Answer

A)  [Ar]4s23d9
B)  [Ar]4s13d10
C)  [Ar]4s24p63d3
D)  [Ar]4s24d9
E)  [Ar]5s24d9F) A) and E)
G) A) and D)

Question 19

___________ is the quantum number which describes the size of an orbital.

Accepted Answer

The princi...

Question 20

For the following equations
a. name the scientist to whom the equation is attributed.
b. in not more than three lines, explain clearly what the equation means or represents.
1. E = nhv
2. $\lambda$= h/mu

Accepted Answer

1.a. Planck
b. A blackbody can only emi...

Exam 6: Quantum Theory and the Electronic Structure of Atoms

If the energy of a photon is 1.32 × 10-18 J,what is its wavelength in nm (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s) ?

Correct AnswerverifiedShow Answer

_____________ is directly proportional to the frequency of a wave.

Correct AnswerverifiedShow Answer

How many electrons are in the 4d orbitals of Tc?

Correct AnswerverifiedShow Answer

What element is represented by the electron configuration 1s22s22p63s23p64s23d104p65s14d10?

Correct AnswerverifiedShow Answer

What is the electron configuration for silicon?

Correct AnswerverifiedShow Answer

What is the difference in the electron configuration between carbon-14 and carbon-12?

Correct AnswerverifiedThere is no difference between the two electron configurations.

The shape of an atomic orbital is associated with

Correct AnswerverifiedShow Answer

Select the arrangement of electromagnetic radiation which starts with the shortest wavelength and increases to longest wavelength.

Correct AnswerverifiedShow Answer

The unusual electron configuration of Mo indicates the

Correct AnswerverifiedShow Answer

Calculate the energy,in joules,required to excite a hydrogen atom by causing an electronic transition from the n = 1 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 ) .

Correct AnswerverifiedShow Answer

In the ___________,electrons are ejected from the surface of a metal exposed to light of a certain minimum frequency.

Correct AnswerverifiedShow Answer

Which scientist proposed that energy of radiation is composed of extremely small indivisible packages called quanta? ("Quanta" is the plural of "quantum.")

Correct AnswerverifiedShow Answer

The electronic structure 1s22s22p63s23p64s23d8 refers to the ground state of

Correct AnswerverifiedB

Which of the following elements has the largest number of unpaired electrons in the ground state?

Correct AnswerverifiedShow Answer

___________ is an attempt to locate a subatomic particle acting as a wave even though it is impossible to know both the momentum and position of the particle simultaneously.

Correct AnswerverifiedThe Heisenberg uncertainty principle

The solar radiation spectrum peaks at a wavelength of approximately 500 nm.Calculate the energy of one photon of that radiation (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s) .

Correct AnswerverifiedShow Answer

The energy of an electron in the hydrogen atom is determined by

Correct AnswerverifiedShow Answer

Select the correct electron configuration for Cu (Z = 29) .

Correct AnswerverifiedShow Answer

___________ is the quantum number which describes the size of an orbital.

Correct AnswerverifiedThe princi...View AnswerShow Answer

For the following equations a. name the scientist to whom the equation is attributed. b. in not more than three lines, explain clearly what the equation means or represents. 1. E = nhv 2. λ\lambdaλ = h/mu

Correct Answerverified1.a. Planckb. A blackbody can only emi...View AnswerShow Answer

If the energy of a photon is 1.32 × 10^-1⁸ J,what is its wavelength in nm (c = 3.00 × 10⁸ m/s; h = 6.63 × 10^-34 J • s) ?

Correct Answer
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What element is represented by the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s¹4d¹⁰?

Correct Answer
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There is no difference between the two electron configurations.

Correct Answer
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Correct Answer
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Calculate the energy,in joules,required to excite a hydrogen atom by causing an electronic transition from the n = 1 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 ) .

Correct Answer
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Correct Answer
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Correct Answer
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The electronic structure 1s²2s²2p⁶3s²3p⁶4s²3d⁸ refers to the ground state of

Correct Answer
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B

Correct Answer
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Correct Answer
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The Heisenberg uncertainty principle

The solar radiation spectrum peaks at a wavelength of approximately 500 nm.Calculate the energy of one photon of that radiation (c = 3.00 × 10⁸ m/s; h = 6.63 × 10^-34 J • s) .

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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The princi...
View Answer

For the following equations a. name the scientist to whom the equation is attributed. b. in not more than three lines, explain clearly what the equation means or represents. 1. E = nhv 2. $\lambda$ = h/mu

Correct Answer
verified

1.a. Planck
b. A blackbody can only emi...
View Answer