Question 1

What is the wavelength of a ball bearing with a mass of 10.0 g, and a velocity of 10.0 cm/s

Accepted Answer

A)   4.63 * 10-22 nm
B)   5.63 * 10-22 nm
C)   6.63 * 10-22 nm
D)   7.63 * 10-22 nm
E)   None of the aboveF) B) and E)
G) A) and E)

Question 2

Which of the following atoms is diamagnetic in its ground-state

Accepted Answer

A)   Ca
B)   As
C)   Cu
D)   Fe
E)   none of theseF) A) and B)
G) A) and C)

Question 3

Which of the following frequencies of light has the highest energy

Accepted Answer

A)   2.5 x 1010 s-1
B)   7.0 x 1013 s-1
C)   2.3 x 1014 s-1
D)   5.0 x 1014 s-1
E)   1.4 x 1015 s-1F) A) and E)
G) A) and D)

Question 4

In an electron microscope, electrons are accelerated to great velocities. Calculate the wavelength of an electron traveling with a velocity of 7.0 * 103 kilometers per second. The mass of an electron is 9.1 * 10-28 g.

Accepted Answer

A)   1.0 * 10-13 m
B)   1.0 * 10-10 m
C)   1.0 * 10-7 m
D)   1.0 mE) B) and D)
F) B) and C)

Question 5

Using the figure below, categorize electromagnetic radiation with a wavelength of 1.0 x 10-3 m. -3 m.   A)  Gamma rays B)  X rays C)  Ultraviolet D)  Infrared E)  Microwave" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   Gamma rays
B)   X rays
C)   Ultraviolet
D)   Infrared
E)   MicrowaveF) A) and B)
G) A) and C)

Question 6

Using the figure below, categorize electromagnetic radiation with a wavelength of 1.0 x 10-1 m. -1 m.   A)  Gamma rays B)  X rays C)  Ultraviolet D)  Infrared E)  Microwave" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   Gamma rays
B)   X rays
C)   Ultraviolet
D)   Infrared
E)   MicrowaveF) A) and D)
G) A) and C)

Question 7

Which of the following is the electron configuration of an excited state of an iron atom

Accepted Answer

A)   [Ar]4s23d7
B)   [Ar]4s23d6
C)   [Ar]4s23d8
D)   [Ar]4s13d7
E)   [Ar]4s13d5F) A) and B)
G) B) and C)

Question 8

Which choice lists two elements with ground-state electron configurations that are well known exceptions to the Aufbau principle

Accepted Answer

A)   Cu and C
B)   Cr and Cu
C)   Cs and Cl
D)   Rb and Co
E)   Fe and CoF) A) and E)
G) D) and E)

Question 9

The quantum numbers, n = 4, l = 1, ml = 1, ms = +1/2, represent an electron in a ______ subshell.

Accepted Answer

A)   4s
B)   3s
C)   4p
D)   3p
E)   None of the aboveF) A) and C)
G) B) and E)

Question 10

Calculate the wavelength associated with a 20Ne+ ion moving at a velocity of 2.0 * 105 m/s. The atomic mass of 20Ne is 19.992 amu.

Accepted Answer

A)   1.7 * 10-40 m
B)   1.0 * 10-18 m
C)   1.0 * 10-16 m
D)   1.0 * 10-13 m
E)   9.7 * 1012 mF) B) and C)
G) A) and C)

Question 11

Each shell (principal energy level) of quantum number n contains n subshells.

Accepted Answer

A) True 
 B)False

Question 12

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

Question 13

What is the maximum number of electrons in an atom that can have the following set of quantum numbers
N = 3    ~~   l = 1    ~~   ml = -1

Accepted Answer

A)   18
B)   6
C)   3
D)   2
E)   1 F) B) and D)
G) C) and D)

Question 14

An electron gains energy in the transition from a 4d subshell to a 5s subshell.

Accepted Answer

A) True 
 B)False

Question 15

Which element has the following ground-state electron configuration
[Xe]6s24f145d10

Accepted Answer

A)   Lu
B)   Cd
C)   Hg
D)   Lr
E)   AuF) A) and E)
G) C) and D)

Exam 7: Quantum Theory and the Electronic Structure of Atoms

In an electron microscope, electrons are accelerated to great velocities. Calculate the wavelength of an electron traveling with a velocity of 7.0 * 10³ kilometers per second. The mass of an electron is 9.1 * 10^-28 g.

Correct Answer
verified

The quantum numbers, n = 4, l = 1, m_l = 1, m_s = +1/2, represent an electron in a ______ subshell.

Correct Answer
verified

What is the wavelength of a ball bearing with a mass of 10.0 g, and a velocity of 10.0 cm/s

Correct Answer
verified

Calculate the wavelength associated with a ²⁰Ne⁺ ion moving at a velocity of 2.0 * 10⁵ m/s. The atomic mass of ²⁰Ne is 19.992 amu.

Correct Answer
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Which of the following is the electron configuration of an excited state of an iron atom

Correct Answer
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Which element has the following ground-state electron configuration [Xe]6s²4f¹⁴5d¹⁰

Correct Answer
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Each shell (principal energy level) of quantum number n contains n subshells.

Correct Answer
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Using the figure below, categorize electromagnetic radiation with a wavelength of 1.0 x 10^-1 m.

Correct Answer
verified

An electron gains energy in the transition from a 4d subshell to a 5s subshell.

Correct Answer
verified

What is the maximum number of electrons in an atom that can have the following set of quantum numbers N = 3 $$ l = 1 $$ m_l = -1

Correct Answer
verified

Which of the following atoms is diamagnetic in its ground-state

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 E_n = -2.18 * 10^-18 J(1/n²)

Correct Answer
verified

Which of the following frequencies of light has the highest energy

Correct Answer
verified

Which choice lists two elements with ground-state electron configurations that are well known exceptions to the Aufbau principle

Correct Answer
verified

Using the figure below, categorize electromagnetic radiation with a wavelength of 1.0 x 10^-3 m.

Correct Answer
verified

Exam 7: Quantum Theory and the Electronic Structure of Atoms

In an electron microscope, electrons are accelerated to great velocities. Calculate the wavelength of an electron traveling with a velocity of 7.0 * 103 kilometers per second. The mass of an electron is 9.1 * 10-28 g.

Correct AnswerverifiedShow Answer

The quantum numbers, n = 4, l = 1, ml = 1, ms = +1/2, represent an electron in a ______ subshell.

Correct AnswerverifiedShow Answer

What is the wavelength of a ball bearing with a mass of 10.0 g, and a velocity of 10.0 cm/s

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 20Ne is 19.992 amu.

Correct AnswerverifiedShow Answer

Which of the following is the electron configuration of an excited state of an iron atom

Correct AnswerverifiedShow Answer

Which element has the following ground-state electron configuration [Xe]6s24f145d10

Correct AnswerverifiedShow Answer

Each shell (principal energy level) of quantum number n contains n subshells.

Correct AnswerverifiedShow Answer

Using the figure below, categorize electromagnetic radiation with a wavelength of 1.0 x 10-1 m.

Correct AnswerverifiedShow Answer

An electron gains energy in the transition from a 4d subshell to a 5s subshell.

Correct AnswerverifiedShow Answer

What is the maximum number of electrons in an atom that can have the following set of quantum numbers N = 3 ~~ l = 1 ~~ ml = -1

Correct AnswerverifiedShow Answer

Which of the following atoms is diamagnetic in its ground-state

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

Which of the following frequencies of light has the highest energy

Correct AnswerverifiedShow Answer

Which choice lists two elements with ground-state electron configurations that are well known exceptions to the Aufbau principle

Correct AnswerverifiedShow Answer

Using the figure below, categorize electromagnetic radiation with a wavelength of 1.0 x 10-3 m.

Correct AnswerverifiedShow Answer

In an electron microscope, electrons are accelerated to great velocities. Calculate the wavelength of an electron traveling with a velocity of 7.0 * 10³ kilometers per second. The mass of an electron is 9.1 * 10^-28 g.

Correct Answer
verified

The quantum numbers, n = 4, l = 1, m_l = 1, m_s = +1/2, represent an electron in a ______ subshell.

Correct Answer
verified

Correct Answer
verified

Calculate the wavelength associated with a ²⁰Ne⁺ ion moving at a velocity of 2.0 * 10⁵ m/s. The atomic mass of ²⁰Ne is 19.992 amu.

Correct Answer
verified

Correct Answer
verified

Which element has the following ground-state electron configuration [Xe]6s²4f¹⁴5d¹⁰

Correct Answer
verified

Correct Answer
verified

Using the figure below, categorize electromagnetic radiation with a wavelength of 1.0 x 10^-1 m.

Correct Answer
verified

Correct Answer
verified

What is the maximum number of electrons in an atom that can have the following set of quantum numbers N = 3 $$ l = 1 $$ m_l = -1

Correct Answer
verified

Correct Answer
verified

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 E_n = -2.18 * 10^-18 J(1/n²)

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Using the figure below, categorize electromagnetic radiation with a wavelength of 1.0 x 10^-3 m.

Correct Answer
verified