Question 1

Consider the n = 10 shell.
(a)What is the largest value of the angular momentum quantum number,ℓ,in this shell?
(b)How many electrons can be placed in this shell?

Accepted Answer

The answer of Consider the n = 10 shell.
(a)What is...

Question 2

How many electrons will fit into a 4f subshell?

Accepted Answer

A) 3 
B) 4 
C) 7 
D) 14 
A) 3 
B) 4 
C) 7 
D) 14

Question 3

In making a transition from state n = 1 to state n = 2,the hydrogen atom must

Accepted Answer

A) absorb a photon of energy 10.2 eV. 
B) emit a photon of energy 10.2 eV. 
C) absorb a photon of energy 13.58 eV. 
D) emit a photon of energy 13.58 eV. 
A) absorb a photon of energy 10.2 eV. 
B) emit a photon of energy 10.2 eV. 
C) absorb a photon of energy 13.58 eV. 
D) emit a photon of energy 13.58 eV.

Question 4

What is the atomic number of a neutral atom that has an electron configuration of 1s2 2s2 2p6 3s2 3p2?

Accepted Answer

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

Question 5

In the n = 1 state,the energy of the hydrogen atom is -13.6 eV.What is its energy in the n = 2 state?

Accepted Answer

A) -6.79 eV 
B) -4.53 eV 
C) -3.40 eV 
D) -1.51 eV 
A) -6.79 eV 
B) -4.53 eV 
C) -3.40 eV 
D) -1.51 eV

Question 6

The energy difference between adjacent orbit radii in a hydrogen atom

Accepted Answer

A) increases with increasing values of n. 
B) decreases with increasing values of n. 
C) remains constant for all values of n. 
D) varies randomly with increasing values of n. 
A) increases with increasing values of n. 
B) decreases with increasing values of n. 
C) remains constant for all values of n. 
D) varies randomly with increasing values of n.

Question 7

How many unique quantum states correspond to the lowest possible energy level of an electron in the hydrogen atom?

Accepted Answer

A) 3 
B) 0 
C) 1 
D) 4 
E) 2 
A) 3 
B) 0 
C) 1 
D) 4 
E) 2

Question 8

What is the value of n in the Balmer series for which the wavelength is 410.2 nm.

Accepted Answer

A) 4 
B) 5 
C) 6 
D) 7 
E) 9 
A) 4 
B) 5 
C) 6 
D) 7 
E) 9

Question 9

The only invalid electron state and shell designation among the following is

Accepted Answer

A) 1s, K (n = 1)shell. 
B) 2s, L (n = 2)shell. 
C) 2d, L (n = 2)shell. 
D) 3s, M (n = 3)shell. 
E) 3d, M (n = 3)shell. 
A) 1s, K (n = 1)shell. 
B) 2s, L (n = 2)shell. 
C) 2d, L (n = 2)shell. 
D) 3s, M (n = 3)shell. 
E) 3d, M (n = 3)shell.

Question 10

What is the ionization energy of the neutral hydrogen atom?

Accepted Answer

A) 27.2 eV 
B) 13.6 eV 
C) 6.8 eV 
D) none of the given answers 
A) 27.2 eV 
B) 13.6 eV 
C) 6.8 eV 
D) none of the given answers

Question 11

The values of n and ℓ for a 4f subshell are

Accepted Answer

A) n = 4, ℓ = 4. 
B) n = 4, ℓ = 3. 
C) n = 3, ℓ = 3. 
D) n = 4, ℓ = 2. 
E) n = 3, ℓ = -3. 
A) n = 4, ℓ = 4. 
B) n = 4, ℓ = 3. 
C) n = 3, ℓ = 3. 
D) n = 4, ℓ = 2. 
E) n = 3, ℓ = -3.

Question 12

The Lyman series is formed by electron transitions in hydrogen that

Accepted Answer

A) end on the n = 1 shell. 
B) begin on the n = 1 shell. 
C) end on the n = 2 shell. 
D) begin on the n = 2 shell. 
E) are between the n = 1 and n = 3 shells. 
A) end on the n = 1 shell. 
B) begin on the n = 1 shell. 
C) end on the n = 2 shell. 
D) begin on the n = 2 shell. 
E) are between the n = 1 and n = 3 shells.

Question 13

If an electron has the same de Broglie wavelength as the wavelength of a 390-nm photon in vacuum,what is the speed of the electron? (melectron = 9.11 × 10-31 kg,c = 3.0 × 108 m/s,h = 6.626 × 10-34 J ∙ s)

Accepted Answer

A) 1900 m/s 
B) 2100 m/s 
C) 1700m/s 
D) 1500 m/s 
E) 540 m/s 
A) 1900 m/s 
B) 2100 m/s 
C) 1700m/s 
D) 1500 m/s 
E) 540 m/s

Question 14

The orbital angular momentum quantum number can take which of the following values for any given value of the principal quantum number,n?

Accepted Answer

A) ℓ = 0, 1, 2, . . . 
B) ℓ = 0, 1, 2, . . . , n 
C) ℓ = 0, 1, 2, . . . , (n - 1) 
D) ℓ = 1, 2, 3, 4, . . . 
E) ℓ = 1, 2, 3, 4, . . ., (n + 1) 
A) ℓ = 0, 1, 2, . . . 
B) ℓ = 0, 1, 2, . . . , n 
C) ℓ = 0, 1, 2, . . . , (n - 1) 
D) ℓ = 1, 2, 3, 4, . . . 
E) ℓ = 1, 2, 3, 4, . . ., (n + 1)

Question 15

A proton and an electron are both accelerated to the same final speed.If λp is the de Broglie wavelength of the proton and λe is the de Broglie wavelength of the electron,then

Accepted Answer

A) λp > λe. 
B) λp = λe. 
C) λp e. 
A) λp > λe. 
B) λp = λe. 
C) λp e.

Question 16

What is the wavelength of the matter wave associated with an electron moving with a speed of 2.5 × 107 m/s? (melectron = 9.11 × 10-31 kg,h = 6.626 × 10-34 J ∙ s)

Accepted Answer

A) 29 pm 
B) 35 pm 
C) 47 pm 
D) 53 pm 
A) 29 pm 
B) 35 pm 
C) 47 pm 
D) 53 pm

Question 17

If an electron has a wavelength of 0.123 nm,what is its kinetic energy,in electron-volts? This energy is not in the relativistic region.(melectron = 9.11 × 10-31 kg,1 eV = 1.60 × 10-19 J,h = 6.626 × 10-34 J ∙ s)

Accepted Answer

A) 19.8 eV 
B) 60.2 eV 
C) 80.4 eV 
D) 99.5 eV 
E) 124 eV 
A) 19.8 eV 
B) 60.2 eV 
C) 80.4 eV 
D) 99.5 eV 
E) 124 eV

Question 18

The wavelength of a ruby laser is 694.3 nm.What is the energy difference between the two energy states for the transition that produces this light? (c = 3.00 × 108 m/s,1 eV = 1.60 × 10-19 J,h = 6.626 × 10-34 J ∙ s)

Accepted Answer

A) 1.54 eV 
B) 1.65 eV 
C) 1.79 eV 
D) 1.81 eV 
A) 1.54 eV 
B) 1.65 eV 
C) 1.79 eV 
D) 1.81 eV

Question 19

Protons are being accelerated in a particle accelerator.When the energy of the protons is doubled,their de Broglie wavelength will

Accepted Answer

A) increase by a factor of 4. 
B) increase by a factor of 2. 
C) decrease by a factor of 2. 
D) increase by a factor of $\sqrt { 2 }$ 
E) decrease by a factor of $\sqrt { 2 }$ 
A) increase by a factor of 4. 
B) increase by a factor of 2. 
C) decrease by a factor of 2. 
D) increase by a factor of $\sqrt { 2 }$ 
E) decrease by a factor of $\sqrt { 2 }$

Question 20

A hydrogen atom makes a transition from the n = 8 to the n = 3 state.The wavelength of the emitted photon is closest to which one of the following values? (c = 3.00 × 108 m/s,1 eV = 1.60 × 10-19 J,h = 6.626 × 10-34 J ∙ s)

Accepted Answer

A) 9.57 × 10-7 m 
B) 1.13 × 10-6 m 
C) 3.12 × 10-7 m 
D) 4.52 × 10-6 m 
E) 6.34 × 10-7 m 
A) 9.57 × 10-7 m 
B) 1.13 × 10-6 m 
C) 3.12 × 10-7 m 
D) 4.52 × 10-6 m 
E) 6.34 × 10-7 m

Exam 28: Atomic Physics

Consider the n = 10 shell. (a)What is the largest value of the angular momentum quantum number,ℓ,in this shell? (b)How many electrons can be placed in this shell?

How many electrons will fit into a 4f subshell?

In making a transition from state n = 1 to state n = 2,the hydrogen atom must

What is the atomic number of a neutral atom that has an electron configuration of 1s2 2s2 2p6 3s2 3p2?

In the n = 1 state,the energy of the hydrogen atom is -13.6 eV.What is its energy in the n = 2 state?

The energy difference between adjacent orbit radii in a hydrogen atom

How many unique quantum states correspond to the lowest possible energy level of an electron in the hydrogen atom?

What is the value of n in the Balmer series for which the wavelength is 410.2 nm.

The only invalid electron state and shell designation among the following is

What is the ionization energy of the neutral hydrogen atom?

The values of n and ℓ for a 4f subshell are

The Lyman series is formed by electron transitions in hydrogen that

If an electron has the same de Broglie wavelength as the wavelength of a 390-nm photon in vacuum,what is the speed of the electron? (melectron = 9.11 × 10-31 kg,c = 3.0 × 108 m/s,h = 6.626 × 10-34 J ∙ s)

The orbital angular momentum quantum number can take which of the following values for any given value of the principal quantum number,n?

A proton and an electron are both accelerated to the same final speed.If λp is the de Broglie wavelength of the proton and λe is the de Broglie wavelength of the electron,then

What is the wavelength of the matter wave associated with an electron moving with a speed of 2.5 × 107 m/s? (melectron = 9.11 × 10-31 kg,h = 6.626 × 10-34 J ∙ s)

If an electron has a wavelength of 0.123 nm,what is its kinetic energy,in electron-volts? This energy is not in the relativistic region.(melectron = 9.11 × 10-31 kg,1 eV = 1.60 × 10-19 J,h = 6.626 × 10-34 J ∙ s)

The wavelength of a ruby laser is 694.3 nm.What is the energy difference between the two energy states for the transition that produces this light? (c = 3.00 × 108 m/s,1 eV = 1.60 × 10-19 J,h = 6.626 × 10-34 J ∙ s)

Protons are being accelerated in a particle accelerator.When the energy of the protons is doubled,their de Broglie wavelength will

A hydrogen atom makes a transition from the n = 8 to the n = 3 state.The wavelength of the emitted photon is closest to which one of the following values? (c = 3.00 × 108 m/s,1 eV = 1.60 × 10-19 J,h = 6.626 × 10-34 J ∙ s)

Introduction

Kinematics: Motion in One Dimension

Newtonian Mechanics

Applying Newtons Laws

Circular Motion

Impulse and Linear Momentum

Work and Energy

Extended Bodies at Rest

Rotational Motion

Gases

Static Fluids

Fluids in Motion

First Law of Thermodynamics

Second Law of Thermodynamics

Electric Charge force and Energy

The Electric Field

Dc Circuits

Magnetism

Electromagnetic Induction

Vibrational Motion

Mechanical Waves

Reflection and Refraction

Mirrors and Lenses

Wave Optics

Electromagnetic Waves

Special Relativity

Quantum Optics

Nuclear Physics

Particle Physics

Filters

What is the atomic number of a neutral atom that has an electron configuration of 1s²2s²2p⁶3s²3p²?

If an electron has the same de Broglie wavelength as the wavelength of a 390-nm photon in vacuum,what is the speed of the electron? (m_electron = 9.11 × 10^-31 kg,c = 3.0 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s)

A proton and an electron are both accelerated to the same final speed.If λ_p is the de Broglie wavelength of the proton and λ_e is the de Broglie wavelength of the electron,then

What is the wavelength of the matter wave associated with an electron moving with a speed of 2.5 × 10⁷ m/s? (m_electron = 9.11 × 10^-31 kg,h = 6.626 × 10^-34 J ∙ s)

If an electron has a wavelength of 0.123 nm,what is its kinetic energy,in electron-volts? This energy is not in the relativistic region.(m_electron = 9.11 × 10^-31 kg,1 eV = 1.60 × 10^-19 J,h = 6.626 × 10^-34 J ∙ s)

The wavelength of a ruby laser is 694.3 nm.What is the energy difference between the two energy states for the transition that produces this light? (c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10^-19J,h = 6.626 × 10^-34 J ∙ s)

A hydrogen atom makes a transition from the n = 8 to the n = 3 state.The wavelength of the emitted photon is closest to which one of the following values? (c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10^-19J,h = 6.626 × 10^-34 J ∙ s)