Question 1

The ionization energy for the hydrogen atom is 13.6 eV.What is the energy of a photon that is emitted as a hydrogen atom makes a transition between the n = 6 and n = 4 states?

Accepted Answer

A)  1.13 eV 
B)  0.47 eV 
C)  0.09 eV 
D)  3.40 eV 
E)  ​6.80 eV 
A)  1.13 eV 
B)  0.47 eV 
C)  0.09 eV 
D)  3.40 eV 
E)  ​6.80 eV

Question 2

In an x-ray machine,electrons are accelerated and then fired so that they are incident on a metal target.Which part of the process produces the characteristic x-ray spectra?

Accepted Answer

A)  The incident electron loses energy. 
B)  The incident electron knocks an electron out of one of the metal atoms. 
C)  A vacancy in an energy level in a metal atom is filled. 
D)  The incident electron emits an x-ray. 
A)  The incident electron loses energy. 
B)  The incident electron knocks an electron out of one of the metal atoms. 
C)  A vacancy in an energy level in a metal atom is filled. 
D)  The incident electron emits an x-ray.

Question 3

If a hydrogen atom,originally in its ground state of energy -13.6 eV,absorbs a photon of energy 15.9 eV,what is the resulting kinetic energy of the electron if the proton has negligible kinetic energy?

Accepted Answer

A)  13.6​ 
B)  -2.30 eV 
C)  2.30 eV 
D)  15.9 eV 
E)  ​Such a photon cannot be absorbed in this case. 
A)  13.6​ 
B)  -2.30 eV 
C)  2.30 eV 
D)  15.9 eV 
E)  ​Such a photon cannot be absorbed in this case.

Question 4

When a wire carries high current causing it to glow,it will emit which type of spectrum?

Accepted Answer

A)  line emission 
B)  line absorption 
C)  continuous 
D)  monochromatic 
A)  line emission 
B)  line absorption 
C)  continuous 
D)  monochromatic

Question 5

The ionization energy of the hydrogen atom is 13.6 eV.What is the energy of the n = 7 state?

Accepted Answer

A)  11.7 eV 
B)  -11.7 eV 
C)  0.28 eV 
D)  -0.28 eV 
E)  ​1.94 eV 
A)  11.7 eV 
B)  -11.7 eV 
C)  0.28 eV 
D)  -0.28 eV 
E)  ​1.94 eV

Question 6

If the radius of the electron orbit in the n = 1 level of the hydrogen atoms is 0.052 9 nm,what is its radius for the n = 4 level? (Assume the Bohr model is valid).

Accepted Answer

A)  0.212 nm 
B)  0.045 nm 
C)  0.716 nm 
D)  0.846 nm 
E)  ​0.920 nm 
A)  0.212 nm 
B)  0.045 nm 
C)  0.716 nm 
D)  0.846 nm 
E)  ​0.920 nm

Question 7

The ground state electronic configuration for magnesium is 1s22s22p63s2.What is the orbital quantum number of the last (3s2)electron?

Accepted Answer

A)  2 
B)  0 
C)  1 
D)  3 
E)  ​not enough information 
A)  2 
B)  0 
C)  1 
D)  3 
E)  ​not enough information

Question 8

A muon behaves like an electron except that it has 207 times the mass of the electron.If a muon were bound to a proton,how would the energy levels in the Bohr model compare to those for a bound electron?

Accepted Answer

A)  They would be the same. 
B)  They would be (207)2 times as much as those for the electron. 
C)  They would be 207 times as much as those for the electron. 
D)  They would be (1/207)times as much as those for the electron. 
A)  They would be the same. 
B)  They would be (207)2 times as much as those for the electron. 
C)  They would be 207 times as much as those for the electron. 
D)  They would be (1/207)times as much as those for the electron.

Question 9

The wavelength of coherent ruby laser light is 694 nm.What energy difference exists between the upper excited state involved and the lower unexcited ground state? (h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s,1 eV = 1.60 × 10−19 J,and 1 nm = 10−9 m)

Accepted Answer

A)  0.56 eV 
B)  1.79 eV 
C)  1.67 eV 
D)  2.87 eV 
E)  ​0.35 eV 
A)  0.56 eV 
B)  1.79 eV 
C)  1.67 eV 
D)  2.87 eV 
E)  ​0.35 eV

Question 10

The quantity ________,where Ψ is the wave function,represents the probability per unit volume of finding an electron in that volume.

Accepted Answer

A)  Ψ1/2 
B)  Ψ 
C)  Ψ3/2 
D)  Ψ2 
A)  Ψ1/2 
B)  Ψ 
C)  Ψ3/2 
D)  Ψ2

Question 11

The quantum mechanical model of the hydrogen atom requires that if the orbital quantum number = 6,there are permitted how many possible substates?

Accepted Answer

A)  6 
B)  12 
C)  26 
D)  13 
E)  ​36 
A)  6 
B)  12 
C)  26 
D)  13 
E)  ​36

Question 12

When a hydrogen atom absorbs a photon that raises it to the n = 4 state,how many different energies are possible for the photon(s)that may be emitted as the atom eventually returns to the ground state?

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  8 
E)  T​he correct answer is not given. 
A)  3 
B)  4 
C)  5 
D)  8 
E)  T​he correct answer is not given.

Question 13

​When a hydrogen atom absorbs a photon that raises it to the n = 7 state,what is the greatest number of photons that can be emitted by that atom as it returns to the ground state?

Accepted Answer

A)  6 
B)  7 
C)  8 
D)  ​14 
E)  ​The correct answer is not given. 
A)  6 
B)  7 
C)  8 
D)  ​14 
E)  ​The correct answer is not given.

Question 14

The quantum mechanical model of the hydrogen atom requires that if the orbital quantum number of the hydrogen atom is 7,there will be how many permitted orbital magnetic quantum numbers?

Accepted Answer

A)  6 
B)  7 
C)  14 
D)  15 
E)  ​49 
A)  6 
B)  7 
C)  14 
D)  15 
E)  ​49

Question 15

The x-rays that occur when a high energy electron beam is incident on a metal target will show what type of spectrum?

Accepted Answer

A)  continuous 
B)  line 
C)  continuous spectrum superimposed with a line spectrum 
D)  absorption 
A)  continuous 
B)  line 
C)  continuous spectrum superimposed with a line spectrum 
D)  absorption

Question 16

Which of the following conditions must be satisfied for laser action?

Accepted Answer

A)  A ruby or similar crystalline material must be used. 
B)  A population inversion must occur. 
C)  The photons must be red. 
D)  A binary system must be used. 
A)  A ruby or similar crystalline material must be used. 
B)  A population inversion must occur. 
C)  The photons must be red. 
D)  A binary system must be used.

Question 17

An alpha particle is:

Accepted Answer

A)  a neutral helium atom. 
B)  any positively charged nucleus. 
C)  an x-ray. 
D)  None of the above. 
A)  a neutral helium atom. 
B)  any positively charged nucleus. 
C)  an x-ray. 
D)  None of the above.

Question 18

The Lyman series of hydrogen is made up of those transitions made from higher levels to n = 1.If the fifth line in this series has a wavelength of 94 nm,what is the wavelength of the sixth line?

Accepted Answer

A)  106 nm 
B)  93 nm 
C)  117 nm 
D)  102 nm 
E)  ​124 nm 
A)  106 nm 
B)  93 nm 
C)  117 nm 
D)  102 nm 
E)  ​124 nm

Question 19

The four visible colors emitted by hydrogen atoms are produced by electrons:

Accepted Answer

A)  that start in the ground state. 
B)  that end up in the ground state. 
C)  that start in the level with n = 2. 
D)  that end up in the level with n = 2. 
A)  that start in the ground state. 
B)  that end up in the ground state. 
C)  that start in the level with n = 2. 
D)  that end up in the level with n = 2.

Question 20

Consider the hydrogen atom,singly ionized helium atom,and the doubly ionized lithium atom.Arrange these atoms from highest energy ground state to lowest energy ground state.

Accepted Answer

A)  H,He+,Li++ 
B)  Li++,He+,H 
C)  H,Li++,He+ 
D)  Since each of these atoms has only one electron,they all have the same energy ground state. 
A)  H,He+,Li++ 
B)  Li++,He+,H 
C)  H,Li++,He+ 
D)  Since each of these atoms has only one electron,they all have the same energy ground state.

Exam 28: Atomic Physics

The ionization energy for the hydrogen atom is 13.6 eV.What is the energy of a photon that is emitted as a hydrogen atom makes a transition between the n = 6 and n = 4 states?

In an x-ray machine,electrons are accelerated and then fired so that they are incident on a metal target.Which part of the process produces the characteristic x-ray spectra?

If a hydrogen atom,originally in its ground state of energy -13.6 eV,absorbs a photon of energy 15.9 eV,what is the resulting kinetic energy of the electron if the proton has negligible kinetic energy?

When a wire carries high current causing it to glow,it will emit which type of spectrum?

The ionization energy of the hydrogen atom is 13.6 eV.What is the energy of the n = 7 state?

If the radius of the electron orbit in the n = 1 level of the hydrogen atoms is 0.052 9 nm,what is its radius for the n = 4 level? (Assume the Bohr model is valid).

The ground state electronic configuration for magnesium is 1s22s22p63s2.What is the orbital quantum number of the last (3s2)electron?

A muon behaves like an electron except that it has 207 times the mass of the electron.If a muon were bound to a proton,how would the energy levels in the Bohr model compare to those for a bound electron?

The wavelength of coherent ruby laser light is 694 nm.What energy difference exists between the upper excited state involved and the lower unexcited ground state? (h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s,1 eV = 1.60 × 10−19 J,and 1 nm = 10−9 m)

The quantity ________,where Ψ is the wave function,represents the probability per unit volume of finding an electron in that volume.

The quantum mechanical model of the hydrogen atom requires that if the orbital quantum number = 6,there are permitted how many possible substates?

When a hydrogen atom absorbs a photon that raises it to the n = 4 state,how many different energies are possible for the photon(s)that may be emitted as the atom eventually returns to the ground state?

​When a hydrogen atom absorbs a photon that raises it to the n = 7 state,what is the greatest number of photons that can be emitted by that atom as it returns to the ground state?

The quantum mechanical model of the hydrogen atom requires that if the orbital quantum number of the hydrogen atom is 7,there will be how many permitted orbital magnetic quantum numbers?

The x-rays that occur when a high energy electron beam is incident on a metal target will show what type of spectrum?

Which of the following conditions must be satisfied for laser action?

An alpha particle is:

The Lyman series of hydrogen is made up of those transitions made from higher levels to n = 1.If the fifth line in this series has a wavelength of 94 nm,what is the wavelength of the sixth line?

The four visible colors emitted by hydrogen atoms are produced by electrons:

Consider the hydrogen atom,singly ionized helium atom,and the doubly ionized lithium atom.Arrange these atoms from highest energy ground state to lowest energy ground state.

Introduction

Introduction: Part A

Motion in One Dimension

Motion in One Dimension: Part A

Vectors and Two-Dimensional Motion

Vectors and Two-Dimensional Motion: Part A

The Laws of Motion

The Laws of Motion: Part A

Energy

Energy: Part A

Momentum and Collisions

Momentum and Collisions: Part A

Rotational Motion and the Law of Gravity

Rotational Motion and the Law of Gravity: Part A

Rotational Equilibrium and Rotational Dynamics

Rotational Equilibrium and Rotational Dynamics: Part A

Solids and Fluids

Solids and Fluids: Part A

Thermal Physics

Thermal Physics: Part A

Energy in Thermal Processes Heat and Internal Energy

Energy in Thermal Processes Heat and Internal Energy: Part A

The Laws of Thermodynamics Work in Thermodynamic Processes

The Laws of Thermodynamics Work in Thermodynamic Processes: Part A

Vibrations and Waves

Vibrations and Waves: Part A

Sound

Sound: Part A

Electric Forces and Electric Fields

Electric Forces and Electric Fields: Part A

Electrical Energy and Capacitance

Electrical Energy and Capacitance: Part A

Current and Resistance Electric Current

Current and Resistance Electric Current: Part A

Direct-Current Circuits Sources of EMF

Direct-Current Circuits Sources of EMF: Part A

Magnetism Magnets

Magnetism Magnets: Part A

Induced Voltages and Inductance

Induced Voltages and Inductance: Part A

Alternating-Current Circuits and Electromagnetic Waves

Alternating-Current Circuits and Electromagnetic Waves: Part A

Reflection and Refraction of Light

Reflection and Refraction of Light: Part A

Mirrors and Lenses

Mirrors and Lenses: Part A

Wave Optics

Wave Optics: Part A

Optical Instruments

Optical Instruments: Part A

Relativity

Relativity: Part A

Quantum Physics Blackbody Radiation and Plancks Hypothesis

Quantum Physics Blackbody Radiation and Plancks Hypothesis: Part A

Atomic Physics: Part A

Nuclear Physics

Nuclear Physics: Part A

Nuclear Energy and Elementary Particles

Nuclear Energy and Elementary Particles: Part A

The ground state electronic configuration for magnesium is 1s²2s²2p⁶3s².What is the orbital quantum number of the last (3s²)electron?

The wavelength of coherent ruby laser light is 694 nm.What energy difference exists between the upper excited state involved and the lower unexcited ground state? (h = 6.63 × 10−³⁴ J⋅s,c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10−¹⁹ J,and 1 nm = 10−⁹ m)

When a hydrogen atom absorbs a photon that raises it to the n = 7 state,what is the greatest number of photons that can be emitted by that atom as it returns to the ground state?