In its ground state,the quantum numbers (n,ℓ,m1,ms)for hydrogen are,respectively,

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

Exam 28: Atomic Physics

The spacing of the atoms of a crystal is 159 pm.A monoenergetic beam of neutrons directed normally at the surface of the crystal undergoes first order diffraction at an angle of 58° from the normal.What is the energy of each of the neutrons? (m_neutron = 1.675 × 10^-27 kg,1 eV = 1.6 × 10^-19 J,h = 6.626 × 10^-34 J ∙ s)

(Multiple Choice)

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Question 21

A person of mass 50 kg has a de Broglie wavelength of 4.4 × 10^-36 m while jogging.How fast is she running? (h = 6.626 × 10^-34 J ∙ s)

(Multiple Choice)

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Question 22

To which of the following values of n does the longest wavelength in the Balmer series correspond?

(Multiple Choice)

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Question 23

Neon has 10 electrons.What is the value of Z of the next higher element that has chemical properties very similar to those of neon?

(Multiple Choice)

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Question 24

The value of a wavelength in the Balmer series is 372.1 nm.What is the corresponding value of n?

(Multiple Choice)

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Question 25

The shortest wavelength of a photon that can be emitted by a hydrogen atom,for which the initial state is $n = 12 ,$ is closest to which one of the following values? $\left( c = 3.0 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } , \right.$ $h = 6.626 \times 10 ^{- 34} \mathrm {~J} \cdot \mathrm { s }$ $1 \mathrm { eV } = 1.60 \times 10^{ - 19} \mathrm {~J} )$

(Multiple Choice)

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Question 26

A crystal diffracts a beam of electrons,like a grating,as they hit it perpendicular to its surface.The crystal spacing is 0.18 nm,and the first maximum scattering occurs at 80° relative to the normal to the surface.(e = 1.60 × 10^-19 C,m_electron = 9.11 × 10^-13 kg,h = 6.626 × 10^-34 J ∙ s) (a)What is the wavelength of the electrons? (b)What potential difference accelerated the electrons if they started from rest?

(Short Answer)

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Question 27

One of the emission lines described by the original version of Balmer's formula has wavelength $377 \mathrm {~nm}$ What is the value of n in Balmer's formula that gives this emission line?

(Multiple Choice)

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Question 28

What would be the de Broglie wavelength for 1-g object moving at the earth's escape speed 25,000 mph (about 11 km/s)? (h = 6.626 × 10^-34 J ∙ s)

(Short Answer)

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Question 29

In its ground state,the quantum numbers (n,ℓ,m₁,m_s)for hydrogen are,respectively,

(Multiple Choice)

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Question 30

A hydrogen atom makes a transition from the $n = 15$ state to the $n = 5$ state.Find the wavelength of the emitted photon.(c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10^-19J,h = 6.626 × 10^-34 J ∙ s)

(Multiple Choice)

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Question 31

An electron has the same de Broglie wavelength as the wavelength of a 1.8 eV photon.What is the speed of the electron? (m_electron = 9.11 × 10^-31 kg, c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10^-19 J)

(Multiple Choice)

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Question 32

What is the wavelength of the emitted photon if an electron in the hydrogen atom makes a transition from the n = 7 state to the n = 2 state? (c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s,1 eV = 1.60 × 10^-19J)

(Multiple Choice)

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Question 33

In a hydrogen atom,an electron with n = 7 can exist in how many different quantum states?

(Multiple Choice)

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Question 34

Which one of the following is the correct electronic configuration for the sodium atom,which has 11 electrons?

(Multiple Choice)

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Question 35

What is the correct ground state electron configuration of boron,which has 5 electrons?

(Multiple Choice)

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Question 36

If the maximum possible accuracy in measuring the lifetime of a particle increases,the maximum possible accuracy in measuring its energy will

(Multiple Choice)

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Question 37

If a hydrogen atom in the ground state absorbs a photon of energy 12.09 eV,to which energy state will it make a transition?

(Multiple Choice)

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Question 38

Radio astronomers often study the radiation emitted by a hydrogen atom from a transition between the two hyperfine levels associated with the ground state.This radiation has a wavelength of 21 cm.What is the energy difference between the hyperfine levels? (1 eV = 1.60 × 10^-19 J)

(Multiple Choice)

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Question 39

What is the longest wavelength in the Lyman Series?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 141

Exam 28: Atomic Physics

A person of mass 50 kg has a de Broglie wavelength of 4.4 × 10-36 m while jogging.How fast is she running? (h = 6.626 × 10-34 J ∙ s)

To which of the following values of n does the longest wavelength in the Balmer series correspond?

Neon has 10 electrons.What is the value of Z of the next higher element that has chemical properties very similar to those of neon?

The value of a wavelength in the Balmer series is 372.1 nm.What is the corresponding value of n?

One of the emission lines described by the original version of Balmer's formula has wavelength 377 nm377 \mathrm {~nm}377 nm What is the value of n in Balmer's formula that gives this emission line?

What would be the de Broglie wavelength for 1-g object moving at the earth's escape speed 25,000 mph (about 11 km/s)? (h = 6.626 × 10-34 J ∙ s)

In its ground state,the quantum numbers (n,ℓ,m1,ms)for hydrogen are,respectively,

A hydrogen atom makes a transition from the n=15n = 15n=15 state to the n=5n = 5n=5 state.Find the wavelength of the emitted photon.(c = 3.00 × 108 m/s,1 eV = 1.60 × 10-19 J,h = 6.626 × 10-34 J ∙ s)

An electron has the same de Broglie wavelength as the wavelength of a 1.8 eV photon.What is the speed of the electron? (melectron = 9.11 × 10-31 kg, c = 3.00 × 108 m/s,1 eV = 1.60 × 10-19 J)

What is the wavelength of the emitted photon if an electron in the hydrogen atom makes a transition from the n = 7 state to the n = 2 state? (c = 3.00 × 108 m/s,h = 6.626 × 10-34 J ∙ s,1 eV = 1.60 × 10-19 J)

In a hydrogen atom,an electron with n = 7 can exist in how many different quantum states?

Which one of the following is the correct electronic configuration for the sodium atom,which has 11 electrons?

What is the correct ground state electron configuration of boron,which has 5 electrons?

If the maximum possible accuracy in measuring the lifetime of a particle increases,the maximum possible accuracy in measuring its energy will

If a hydrogen atom in the ground state absorbs a photon of energy 12.09 eV,to which energy state will it make a transition?

Radio astronomers often study the radiation emitted by a hydrogen atom from a transition between the two hyperfine levels associated with the ground state.This radiation has a wavelength of 21 cm.What is the energy difference between the hyperfine levels? (1 eV = 1.60 × 10-19 J)

What is the longest wavelength in the Lyman Series?

Introduction

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Applying Newtons Laws

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Extended Bodies at Rest

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Gases

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The Electric Field

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A person of mass 50 kg has a de Broglie wavelength of 4.4 × 10^-36 m while jogging.How fast is she running? (h = 6.626 × 10^-34 J ∙ s)

One of the emission lines described by the original version of Balmer's formula has wavelength $377 \mathrm {~nm}$ What is the value of n in Balmer's formula that gives this emission line?

What would be the de Broglie wavelength for 1-g object moving at the earth's escape speed 25,000 mph (about 11 km/s)? (h = 6.626 × 10^-34 J ∙ s)

In its ground state,the quantum numbers (n,ℓ,m₁,m_s)for hydrogen are,respectively,

A hydrogen atom makes a transition from the $n = 15$ state to the $n = 5$ state.Find the wavelength of the emitted photon.(c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10^-19J,h = 6.626 × 10^-34 J ∙ s)

An electron has the same de Broglie wavelength as the wavelength of a 1.8 eV photon.What is the speed of the electron? (m_electron = 9.11 × 10^-31 kg, c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10^-19 J)

What is the wavelength of the emitted photon if an electron in the hydrogen atom makes a transition from the n = 7 state to the n = 2 state? (c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s,1 eV = 1.60 × 10^-19J)

Radio astronomers often study the radiation emitted by a hydrogen atom from a transition between the two hyperfine levels associated with the ground state.This radiation has a wavelength of 21 cm.What is the energy difference between the hyperfine levels? (1 eV = 1.60 × 10^-19 J)