Question 1

How many electrons can be found with principal quantum number n = 3 in a suitably heavy atom?

Accepted Answer

A) 18 
B) 6 
C) 20 
D) 9 
A) 18 
B) 6 
C) 20 
D) 9 A

Question 2

If two electrons in an atom have the same energy,then they must have the same four quantum numbers.

Accepted Answer

A) True 
 B)False  False

Question 3

What is the greatest magnitude of the orbital angular momentum L for an electron in a state with principal quantum number n = 5?

Accepted Answer

A) 4.47   
B) 4.90   
C) 5   
D) 5.48   
A) 4.47   
B) 4.90   
C) 5   
D) 5.48   A

Question 4

An electron in a hydrogen atom has orbital quantum number l = 4.How many possible values of the magnetic quantum number ml could it have?

Accepted Answer

A) 4 
B) 10 
C) 5 
D) 9 
E) 3 
A) 4 
B) 10 
C) 5 
D) 9 
E) 3

Question 5

How many possible sets of quantum numbers (electron states)are there in the 5f subshell?

Accepted Answer

A) 2 
B) 6 
C) 8 
D) 10 
E) 14 
A) 2 
B) 6 
C) 8 
D) 10 
E) 14

Question 6

The binding energy of the hydrogen atom in its ground state is -13.6 eV.What is the energy when it is in the n = 5 state?

Accepted Answer

A) 2.72 eV 
B) -2.72 eV 
C) 0.544 eV 
D) -0.544 eV 
E) -68 eV 
A) 2.72 eV 
B) -2.72 eV 
C) 0.544 eV 
D) -0.544 eV 
E) -68 eV

Question 7

An atom has completely filled inner shells and a single valence electron in an excited p state.The filled inner shells have an orbital momentum equal to zero.What is the magnitude of the orbital angular momentum L of the atom?

Accepted Answer

A) 1.0ħ 
B) 1.2ħ 
C) 1.4ħ 
D) 1.7ħ 
E) 2.0ħ 
A) 1.0ħ 
B) 1.2ħ 
C) 1.4ħ 
D) 1.7ħ 
E) 2.0ħ

Question 8

What is the minimum speed needed by a ground-state hydrogen atom for its kinetic energy to be enough to ionize the atom in a collision? (1 eV = 1.60 × 10-19 J,mh ≈ mproton = 1.67 × 10-27 kg)

Accepted Answer

A) 44.2 km/s 
B) 21.7 km/s 
C) 66.5 km/s 
D) 113 km/s 
E) 51.0 km/s 
A) 44.2 km/s 
B) 21.7 km/s 
C) 66.5 km/s 
D) 113 km/s 
E) 51.0 km/s

Question 9

The magnitude of the orbital angular momentum L of an electron in a certain atom is equal to 3.464ħ.What is the orbital quantum number l of the electron?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 10

How many electrons does it take to fill the d subshell?

Accepted Answer

A) 10 
B) 6 
C) 14 
D) 4 
E) 8 
A) 10 
B) 6 
C) 14 
D) 4 
E) 8

Question 11

What is the electron configuration for ground state Li,which has 3 electrons?

Accepted Answer

A) 1s3 
B) 1s12s2 
C) 1s22s1 
D) 1s21p1 
E) 1s11p2 
A) 1s3 
B) 1s12s2 
C) 1s22s1 
D) 1s21p1 
E) 1s11p2

Question 12

How fast must a hydrogen atom be traveling for its kinetic energy to be just enough to excite the ground-state atom to its first excited state in a collision? (1 eV = 1.60 × 10-19 J, mh ≈ mproton = 1.67 × 10-27 kg)

Accepted Answer

A) 44.2 km/s 
B) 21.7 km/s 
C) 66.5 km/s 
D) 113 km/s 
E) 51.0 km/s 
A) 44.2 km/s 
B) 21.7 km/s 
C) 66.5 km/s 
D) 113 km/s 
E) 51.0 km/s

Question 13

If an electron has spin quantum number ms = -   ,what is the possible value for the orbital quantum number l of the electron?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 11 
E) All of the above numbers are possible. 
A) 0 
B) 1 
C) 2 
D) 11 
E) All of the above numbers are possible.

Question 14

You need 14 W of infrared laser light power with wavelength 1270 nm to bore a hole in a diamond.How many downward atomic transitions per second must occur in the laser if all of them result in light directed onto the diamond? (c = 3.00 × 108 m/s,h = 6.626 × 10-34 J ∙ s)

Accepted Answer

A) 8.9 × 1019 
B) 8.9 × 1018 
C) 5.9 × 1019 
D) 2.7 × 1018 
A) 8.9 × 1019 
B) 8.9 × 1018 
C) 5.9 × 1019 
D) 2.7 × 1018

Question 15

An electron in a hydrogen atom is in the n = 7 shell.How many possible values of the orbital quantum number l could it have?

Accepted Answer

A) 6 
B) 7 
C) 15 
D) 33 
E) 98 
A) 6 
B) 7 
C) 15 
D) 33 
E) 98

Question 16

A neutral atom has an electron configuration of 1s22s22p63s23p2.How many protons does it have in its nucleus?

Accepted Answer

A) 5 
B) 11 
C) 14 
D) 20 
E) 26 
A) 5 
B) 11 
C) 14 
D) 20 
E) 26

Question 17

If the principal quantum number of an electron is n = 5,which one of the following is NOT an allowed magnetic quantum number ml for the electron?

Accepted Answer

A) 0 
B) 2 
C) 3 
D) 4 
E) 5 
A) 0 
B) 2 
C) 3 
D) 4 
E) 5

Question 18

The wavelength of a ruby laser is 694.3 nm.What is the energy difference between the two energy states involved in laser action? (c = 2.9979 × 108 m/s,h = 6.626 × 10-34 J ∙ s, 1 eV = 1.6022 × 10-19 J)

Accepted Answer

A) 1.537 eV 
B) 1.646 eV 
C) 1.786 eV 
D) 1.812 eV 
E) 3.572 eV 
A) 1.537 eV 
B) 1.646 eV 
C) 1.786 eV 
D) 1.812 eV 
E) 3.572 eV

Question 19

The correct ground state electron configuration of boron,which has 5 electrons,is

Accepted Answer

A) 1s22s22p. 
B) 1s22s22p3. 
C) 1s21p22s. 
D) 1s22p23s. 
E) 1s22p3. 
A) 1s22s22p. 
B) 1s22s22p3. 
C) 1s21p22s. 
D) 1s22p23s. 
E) 1s22p3.

Question 20

A collection of atoms has 20% of the sample in a state   above the ground state.If these emit coherent radiation,what is the wavelength of the laser light produced? (c = 3.00 × 108 m/s,h = 6.626 × 10-34 J ∙ s,1 eV = 1.60 × 10-19 J)

Accepted Answer

A) 210 nm 
B) 91 nm 
C) 340 nm 
D) 34 nm 
A) 210 nm 
B) 91 nm 
C) 340 nm 
D) 34 nm

Exam 41: Atomic Physics

How many electrons can be found with principal quantum number n = 3 in a suitably heavy atom?

If two electrons in an atom have the same energy,then they must have the same four quantum numbers.

What is the greatest magnitude of the orbital angular momentum L for an electron in a state with principal quantum number n = 5?

An electron in a hydrogen atom has orbital quantum number l = 4.How many possible values of the magnetic quantum number ml could it have?

How many possible sets of quantum numbers (electron states)are there in the 5f subshell?

The binding energy of the hydrogen atom in its ground state is -13.6 eV.What is the energy when it is in the n = 5 state?

An atom has completely filled inner shells and a single valence electron in an excited p state.The filled inner shells have an orbital momentum equal to zero.What is the magnitude of the orbital angular momentum L of the atom?

What is the minimum speed needed by a ground-state hydrogen atom for its kinetic energy to be enough to ionize the atom in a collision? (1 eV = 1.60 × 10-19 J,mh ≈ mproton = 1.67 × 10-27 kg)

The magnitude of the orbital angular momentum L of an electron in a certain atom is equal to 3.464ħ.What is the orbital quantum number l of the electron?

How many electrons does it take to fill the d subshell?

What is the electron configuration for ground state Li,which has 3 electrons?

How fast must a hydrogen atom be traveling for its kinetic energy to be just enough to excite the ground-state atom to its first excited state in a collision? (1 eV = 1.60 × 10-19 J, mh ≈ mproton = 1.67 × 10-27 kg)

If an electron has spin quantum number ms = - ,what is the possible value for the orbital quantum number l of the electron?

You need 14 W of infrared laser light power with wavelength 1270 nm to bore a hole in a diamond.How many downward atomic transitions per second must occur in the laser if all of them result in light directed onto the diamond? (c = 3.00 × 108 m/s,h = 6.626 × 10-34 J ∙ s)

An electron in a hydrogen atom is in the n = 7 shell.How many possible values of the orbital quantum number l could it have?

A neutral atom has an electron configuration of 1s22s22p63s23p2.How many protons does it have in its nucleus?

If the principal quantum number of an electron is n = 5,which one of the following is NOT an allowed magnetic quantum number ml for the electron?

The wavelength of a ruby laser is 694.3 nm.What is the energy difference between the two energy states involved in laser action? (c = 2.9979 × 108 m/s,h = 6.626 × 10-34 J ∙ s, 1 eV = 1.6022 × 10-19 J)

The correct ground state electron configuration of boron,which has 5 electrons,is

A collection of atoms has 20% of the sample in a state above the ground state.If these emit coherent radiation,what is the wavelength of the laser light produced? (c = 3.00 × 108 m/s,h = 6.626 × 10-34 J ∙ s,1 eV = 1.60 × 10-19 J)

Concepts of Motion

Kinematics in One Dimension

Vectors and Coordinate Systems

Kinematics in Two Dimensions

Force and Motion

Dynamics I: Motion Along a Line

Newtons Third Law

Dynamics II: Motion in a Plane

Work and Kinetic Energy

Interactions and Potential Energy

Impulse and Momentum

Rotation of a Rigid Body

Newtons Theory of Gravity

Fluids and Elasticity

Oscillations

Traveling Waves

Superposition

A Macroscopic Description of Matter

Work, heat, and the First Law of Thermodynamics

The Micromacro Connection

Heat Engines and Refrigerators

Electric Charges and Forces

The Electric Field

Gausss Law

The Electric Potential

Potential and Field

Current and Resistance

Fundamentals of Circuits

The Magnetic Field

Electromagnetic Induction

Electromagnetic Fields and Waves

Ac Circuits

Wave Optics

Ray Optics

Optical Instruments

Relativity

The Foundations of Modern Physics

Quantization

Wave Functions and Uncertainty

One-Dimensional Quantum Mechanics

Nuclear Physics

Filters

An electron in a hydrogen atom has orbital quantum number l = 4.How many possible values of the magnetic quantum number m_l could it have?

What is the minimum speed needed by a ground-state hydrogen atom for its kinetic energy to be enough to ionize the atom in a collision? (1 eV = 1.60 × 10^-19 J,m_h ≈ m_proton = 1.67 × 10^-27 kg)

How fast must a hydrogen atom be traveling for its kinetic energy to be just enough to excite the ground-state atom to its first excited state in a collision? (1 eV = 1.60 × 10^-19 J, m_h ≈ m_proton = 1.67 × 10^-27 kg)

If an electron has spin quantum number m_s = - ,what is the possible value for the orbital quantum number l of the electron?

You need 14 W of infrared laser light power with wavelength 1270 nm to bore a hole in a diamond.How many downward atomic transitions per second must occur in the laser if all of them result in light directed onto the diamond? (c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s)

A neutral atom has an electron configuration of 1s²2s²2p⁶3s²3p².How many protons does it have in its nucleus?

If the principal quantum number of an electron is n = 5,which one of the following is NOT an allowed magnetic quantum number m_l for the electron?

The wavelength of a ruby laser is 694.3 nm.What is the energy difference between the two energy states involved in laser action? (c = 2.9979 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s, 1 eV = 1.6022 × 10^-19 J)

A collection of atoms has 20% of the sample in a state above the ground state.If these emit coherent radiation,what is the wavelength of the laser light produced? (c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s,1 eV = 1.60 × 10^-19 J)