Question 1

A hydrogen atom is in the 6h state. How many electrons are allowed in this state?

Accepted Answer

A) 22 
B) 18 
C) 14 
D) 10 
E) 6 
A) 22 
B) 18 
C) 14 
D) 10 
E) 6

Question 2

Electrons with n = 3 are in the

Accepted Answer

A) M shell. 
B) N or M shells. 
C) K shell. 
D) N shell. 
E) L shell. 
A) M shell. 
B) N or M shells. 
C) K shell. 
D) N shell. 
E) L shell.

Question 3

A hydrogen atom is in the 6h state. Determine the principal quantum number.

Accepted Answer

A) 0 
B) 3 
C) 5 
D) 6 
E) 7 
A) 0 
B) 3 
C) 5 
D) 6 
E) 7

Question 4

The magnetic quantum number can have any integer value ranging from

Accepted Answer

A) -n to +n. 
B) -ℓ to +ℓ. 
C) 0 to n. 
D) 0 to ℓ. 
E) ℓ to 2ℓ + 1. 
A) -n to +n. 
B) -ℓ to +ℓ. 
C) 0 to n. 
D) 0 to ℓ. 
E) ℓ to 2ℓ + 1.

Question 5

A hydrogen atom is in the 6h state. Which one of the following is not a magnetic quantum number?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 4 
E) 6 
A) 0 
B) 1 
C) 2 
D) 4 
E) 6

Question 6

A certain laser radiates with a wavelength of 2488 nm. What is the energy difference, in electron volts, between the two energy levels involved in producing this light?

Accepted Answer

A) 0.50 eV 
B) 0.65 eV 
C) 0.45 eV 
D) 0.60 eV 
E) 0.55 eV 
A) 0.50 eV 
B) 0.65 eV 
C) 0.45 eV 
D) 0.60 eV 
E) 0.55 eV

Question 7

In a hydrogen atom, a given electron has ℓ = 7. How many values can mℓ have?

Accepted Answer

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

Question 8

When a hologram is illuminated with a beam of coherent light, it produces

Accepted Answer

A) both a real and a virtual image. 
B) only a real image of the object. 
C) only a virtual image of the object. 
D) a real object. 
E) none of the given answers. 
A) both a real and a virtual image. 
B) only a real image of the object. 
C) only a virtual image of the object. 
D) a real object. 
E) none of the given answers.

Question 9

The allowed values for the magnetic quantum number, mℓ , are from mℓ = -ℓ to +ℓ.

Accepted Answer

A) True 
 B)False

Question 10

The emission of light of lower frequency after illumination by a higher frequency is referred to as

Accepted Answer

A) absorption. 
B) stimulated emission. 
C) coherence. 
D) phosphorescence. 
E) fluorescence. 
A) absorption. 
B) stimulated emission. 
C) coherence. 
D) phosphorescence. 
E) fluorescence.

Question 11

When an electron jumps from an orbit where n = 4 to one where n = 2

Accepted Answer

A) a photon is emitted. 
B) a photon is absorbed. 
C) two photons are emitted. 
D) two photons are absorbed. 
E) none of the given answers 
A) a photon is emitted. 
B) a photon is absorbed. 
C) two photons are emitted. 
D) two photons are absorbed. 
E) none of the given answers

Question 12

A neutral atom has an electron configuration of 1s22s22p6. If a neutral atom holds one additional electron, what is the ground state configuration?

Accepted Answer

A) 1s22s22p63s1  
B) 1s22s22p7  
C) 1s22s32p6  
D) 1s32s32p6  
E) none of the given answers 
A) 1s22s22p63s1  
B) 1s22s22p7  
C) 1s22s32p6  
D) 1s32s32p6  
E) none of the given answers

Question 13

In principle, a hologram is a result of which of the following properties of light?

Accepted Answer

A) Transmission 
B) Interference 
C) Refraction 
D) Reflection 
E) Dispersion 
A) Transmission 
B) Interference 
C) Refraction 
D) Reflection 
E) Dispersion

Question 14

High-energy photons are used to bombard an unknown metal. The strongest peak is found for X-rays with an energy of 66 keV. What is the atomic number of the metal?

Accepted Answer

A) 80 
B) 81 
C) 82 
D) 83 
E) 84 
A) 80 
B) 81 
C) 82 
D) 83 
E) 84

Question 15

In hydrogen any transition ending in the ground state emits a photon that

Accepted Answer

A) may be in the ultraviolet. 
B) is in neither the ultraviolet nor the infrared. 
C) may be in the infrared. 
D) is in the infrared. 
E) is in the ultraviolet. 
A) may be in the ultraviolet. 
B) is in neither the ultraviolet nor the infrared. 
C) may be in the infrared. 
D) is in the infrared. 
E) is in the ultraviolet.

Question 16

According to the selection rules, which of the following transitions is not allowed?

Accepted Answer

A) n = 3, ℓ = 2 to n = 2, ℓ = 1 
B) n = 4, ℓ = 3 to n = 3, ℓ = 2 
C) n = 3, ℓ = 1 to n = 1, ℓ = 0 
D) n = 2, ℓ = 1 to n = 1, ℓ = 0 
E) n = 4, ℓ = 2 to n = 3, ℓ = 2 
A) n = 3, ℓ = 2 to n = 2, ℓ = 1 
B) n = 4, ℓ = 3 to n = 3, ℓ = 2 
C) n = 3, ℓ = 1 to n = 1, ℓ = 0 
D) n = 2, ℓ = 1 to n = 1, ℓ = 0 
E) n = 4, ℓ = 2 to n = 3, ℓ = 2

Question 17

Which one of the following properties of the beam of light applies to a laser beam?

Accepted Answer

A) It is coherent. 
B) It is incoherent. 
C) It is diverging. 
D) It is converging. 
E) None of the other answers given is correct. 
A) It is coherent. 
B) It is incoherent. 
C) It is diverging. 
D) It is converging. 
E) None of the other answers given is correct.

Question 18

If n = 5, which one of the following is not an allowed magnetic quantum number?

Accepted Answer

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

Question 19

In the ground state, the quantum numbers (n, ℓ, mℓ, ms) for hydrogen are, respectively,

Accepted Answer

A) 1, 1, 1, 1. 
B) 1, 0, 0, 0. 
C) 1, 0, 0, ±1/2. 
D) 1, 1, 1, ±1/2. 
E) 1, 1, 0, ±1/2. 
A) 1, 1, 1, 1. 
B) 1, 0, 0, 0. 
C) 1, 0, 0, ±1/2. 
D) 1, 1, 1, ±1/2. 
E) 1, 1, 0, ±1/2.

Question 20

What is the shortest-wavelength X-ray photon emitted in an X-ray tube subject to 50 kV?

Accepted Answer

A) 0.025 nm 
B) 0.25 nm 
C) 2.5 nm 
D) 25 nm 
E) none of the given answers 
A) 0.025 nm 
B) 0.25 nm 
C) 2.5 nm 
D) 25 nm 
E) none of the given answers

Exam 39: Quantum Mechanics of Atoms

A hydrogen atom is in the 6h state. How many electrons are allowed in this state?

Electrons with n = 3 are in the

A hydrogen atom is in the 6h state. Determine the principal quantum number.

The magnetic quantum number can have any integer value ranging from

A hydrogen atom is in the 6h state. Which one of the following is not a magnetic quantum number?

A certain laser radiates with a wavelength of 2488 nm. What is the energy difference, in electron volts, between the two energy levels involved in producing this light?

In a hydrogen atom, a given electron has ℓ = 7. How many values can mℓ have?

When a hologram is illuminated with a beam of coherent light, it produces

The allowed values for the magnetic quantum number, mℓ , are from mℓ = -ℓ to +ℓ.

The emission of light of lower frequency after illumination by a higher frequency is referred to as

When an electron jumps from an orbit where n = 4 to one where n = 2

A neutral atom has an electron configuration of 1s22s22p6. If a neutral atom holds one additional electron, what is the ground state configuration?

In principle, a hologram is a result of which of the following properties of light?

High-energy photons are used to bombard an unknown metal. The strongest peak is found for X-rays with an energy of 66 keV. What is the atomic number of the metal?

In hydrogen any transition ending in the ground state emits a photon that

According to the selection rules, which of the following transitions is not allowed?

Which one of the following properties of the beam of light applies to a laser beam?

If n = 5, which one of the following is not an allowed magnetic quantum number?

In the ground state, the quantum numbers (n, ℓ, mℓ, ms) for hydrogen are, respectively,

What is the shortest-wavelength X-ray photon emitted in an X-ray tube subject to 50 kV?

Introduction, Measurement, Estimating

Describing Motion: Kinematics in One Dimension

Kinematics in Two or Three Dimensions; Vectors

Dynamics: Newtons Laws of Motion

Using Newtons Laws: Friction, Circular Motion, Drag Forces

Gravitation and Newtons6 Synthesis

Work and Energy

Conservation of Energy

Linear Momentum

Rotational Motion

Angular Momentum; General Rotation

Static Equilibrium; Elasticity and Fracture

Fluids

Oscillations

Wave Motion

Sound

Temperature, Thermal Expansion, and the Ideal Gas Law

Kinetic Theory of Gases

Heat and the First Law of Thermodynamics

Second Law of Thermodynamics

Electric Charge and Electric Field

Gausss Law

Electric Potential

Capacitance, Dielectrics, Electric Energy Storage

Electric Currents and Resistance

Dc Circuits

Magnetism

Sources of Magnetic Field

Electromagnetic Induction and Faradays Law

Inductance, Electromagnetic Oscillations, and Ac Circuits

Maxwells Equations and Electromagnetic Waves

Light: Reflection and Refraction

Lenses and Optical Instruments

The Wave Nature of Light; Interference

Diffraction and Polarization

Special Theory of Relativity

Early Quantum Theory and Models of the Atom

Quantum Mechanics

Molecules and Solids

Nuclear Physics and Radioactivity

Nuclear Energy: Efects and Uses of Radiation

Elementary Particle

Astrophysics and Cosmology

Filters

In a hydrogen atom, a given electron has ℓ = 7. How many values can m_ℓ have?

The allowed values for the magnetic quantum number, m_ℓ , are from m_ℓ = -ℓ to +ℓ.

A neutral atom has an electron configuration of 1s²2s²2p⁶. If a neutral atom holds one additional electron, what is the ground state configuration?

In the ground state, the quantum numbers (n, ℓ, m_ℓ, m_s) for hydrogen are, respectively,