Question 1

Dispersing light from a hot wire gives what type of spectrum?

Accepted Answer

A)   Line absorption
B)   Continuous
C)   Line emission
D)   UltravioletE) A) and C)
F) A) and B)

Question 2

The ancient Greek who is known for championing the concept of atom was named ______________.

Accepted Answer

A)   Democritus
B)   Socrates
C)   Plato
D)   ZeusE) A) and C)
F) A) and D)

Question 3

An electron is in its lowest energy level when

Accepted Answer

A)   it is free of nuclear forces.
B)   its momentum is zero.
C)   it is in its ground state.
D)   none of these.E) A) and D)
F) A) and B)

Question 4

The principal quantum number is symbolized by the letter ______________.

Accepted Answer

The answer of The principal quantum number is symbolized by...

Question 5

The ancient Greek who is known for championing the concept of the atom was named ______________.

Accepted Answer

Democritus...

Question 6

The transitions of an electron in the hydrogen atom to the n = 1 level result in the

Accepted Answer

A)   Lyman series.
B)   Balmer series.
C)   Paschen series.
D)   Bohr series.E) B) and C)
F) B) and D)

Question 7

Dispersing light that has traveled from a hot wire through a cool gas gives what type of spectrum?

Accepted Answer

A)   Line absorption
B)   Continuous
C)   Line emission
D)   UltravioletE) A) and B)
F) All of the above

Question 8

Doubling the wavelength of a photon would ______________ its energy.

Accepted Answer

The answer of Doubling the wavelength of a photon would...

Question 9

One prediction of Einstein's special theory of relativity is that objects traveling close to the speed of light

Accepted Answer

A)   get lighter.
B)   get more massive.
C)   get longer.
D)   disappear.E) A) and B)
F) B) and C)

Question 10

For a specific element, photons of how many different energies could be emitted by electrons in the n = 6 level as they return to the n = 1 level?

Accepted Answer

A)   15
B)   21
C)   6
D)   1E) None of the above
F) B) and D)

Question 11

When the energy state of an atom changes by $\Delta$E, the frequency of the photon emitted or absorbed is calculated by dividing $\Delta$E by ______________.

Accepted Answer

h, or Plan...

Question 12

Which of these colors of light has photons of lowest energy?

Accepted Answer

A)   Yellow
B)   Green
C)   Blue
D)   VioletE) A) and B)
F) B) and D)

Question 13

Which is another name for quantum mechanics?

Accepted Answer

A)   Classical mechanics
B)   Wave mechanics
C)   Optical mechanics
D)   Spherical mechanicsE) B) and D)
F) B) and C)

Question 14

An excited gas in a gas-discharge tube emits light that disperses into a(n) ______________ spectrum.

Accepted Answer

line emiss...

Question 15

Which of these colors of light has photons of greatest energy?

Accepted Answer

A)   Violet
B)   Red
C)   Blue
D)   YellowE) A) and B)
F) All of the above

Question 16

A CD player uses a laser whose light frequency is 3.85 $\times$1014 Hz. Calculate the energy, in joules, of the photons.

Accepted Answer

55 <img  loading="lazy" src="/assets/images/blured-textbook.svg" class="d-inline m-1" alt="blured image" width="139" height="30"> 10<sup...

Question 17

Tripling the wavelength of a photon would ______________.

Accepted Answer

A)   reduce its energy to one-third
B)   triple its energy
C)   quadruple its energy
D)   not changeE) A) and B)
F) A) and C)

Question 18

Which of the following principal quantum number values is impossible?

Accepted Answer

A)   2.5
B)   16
C)   3
D)   1E) All of the above
F) B) and C)

Question 19

The term probability is associated with the model of the atom proposed by ______________.

Accepted Answer

The answer of The term probability is associated with the...

Question 20

If the energy of n = 4 is -0.85 eV and that of n = 2 is -3.40 eV in a hydrogen atom, a transition from n = 4 to n = 2 will release a photon of what energy?

Accepted Answer

The answer of If the energy of n = 4...

Exam 9: Chemical Reactions

One prediction of Einstein's special theory of relativity is that objects traveling close to the speed of light

Correct AnswerverifiedShow Answer

Doubling the wavelength of a photon would ______________ its energy.

Correct AnswerverifiedShow Answer

Which is another name for quantum mechanics?

Correct AnswerverifiedShow Answer

Dispersing light that has traveled from a hot wire through a cool gas gives what type of spectrum?

Correct AnswerverifiedShow Answer

Tripling the wavelength of a photon would ______________.

Correct AnswerverifiedShow Answer

An electron is in its lowest energy level when

Correct AnswerverifiedShow Answer

The term probability is associated with the model of the atom proposed by ______________.

Correct AnswerverifiedShow Answer

For a specific element, photons of how many different energies could be emitted by electrons in the n = 6 level as they return to the n = 1 level?

Correct AnswerverifiedShow Answer

Which of the following principal quantum number values is impossible?

Correct AnswerverifiedShow Answer

The ancient Greek who is known for championing the concept of atom was named ______________.

Correct AnswerverifiedShow Answer

An excited gas in a gas-discharge tube emits light that disperses into a(n) ______________ spectrum.

Correct Answerverifiedline emiss...View AnswerShow Answer

Which of these colors of light has photons of lowest energy?

Correct AnswerverifiedShow Answer

If the energy of n = 4 is -0.85 eV and that of n = 2 is -3.40 eV in a hydrogen atom, a transition from n = 4 to n = 2 will release a photon of what energy?

Correct AnswerverifiedShow Answer

The ancient Greek who is known for championing the concept of the atom was named ______________.

Correct AnswerverifiedDemocritus...View AnswerShow Answer

The principal quantum number is symbolized by the letter ______________.

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Which of these colors of light has photons of greatest energy?

Correct AnswerverifiedShow Answer

When the energy state of an atom changes by Δ\DeltaΔ E, the frequency of the photon emitted or absorbed is calculated by dividing Δ\DeltaΔ E by ______________.

Correct Answerverifiedh, or Plan...View AnswerShow Answer

A CD player uses a laser whose light frequency is 3.85 ×\times× 1014 Hz. Calculate the energy, in joules, of the photons.

Correct Answerverified55 10View AnswerShow Answer

The transitions of an electron in the hydrogen atom to the n = 1 level result in the

Correct AnswerverifiedShow Answer

Dispersing light from a hot wire gives what type of spectrum?

Correct AnswerverifiedShow Answer

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line emiss...
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Democritus...
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When the energy state of an atom changes by $\Delta$ E, the frequency of the photon emitted or absorbed is calculated by dividing $\Delta$ E by ______________.

Correct Answer
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h, or Plan...
View Answer

A CD player uses a laser whose light frequency is 3.85 $\times$ 10¹⁴Hz. Calculate the energy, in joules, of the photons.

Correct Answer
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55 10
View Answer

Correct Answer
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Correct Answer
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