The work function of sodium is F1F1F1S1F1F1F10 F1F1F1S1F1F1F10 2.9 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F1019 J. What is the maximum wavelength that can cause ejection of photoelectrons from a sodium surface?

A) 151 nm B) 222 nm C) 45.1 nm D) 451 nm E) 685 nm A) 151 nm B) 222 nm C) 45.1 nm D) 451 nm E) 685 nm

What is the ground-state electron configuration of an Ni2F1F1F1S1F1F1F10 ion?

A) [Ar]3d 84s2 B) [Ar]3d 64s2 C) [Ar]3d 8 D) [Ar]3d104s2 E) [Ar]3d10 A) [Ar]3d 84s2 B) [Ar]3d 64s2 C) [Ar]3d 8 D) [Ar]3d104s2 E) [Ar]3d10

Exam 7: A Quantum Model of Atoms: Waves and Particles

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De Broglie reasoned that for the electron in the hydrogen atom to behave as a stable circular wave, the circumference of the electron's orbit must be ________

(Multiple Choice)

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Question 81

The work function of sodium is   2.9  10^¹⁹ J. What is the maximum wavelength that can cause ejection of photoelectrons from a sodium surface?

(Multiple Choice)

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Question 82

Which of the following orbitals is the lowest in energy (assuming they are all in the same shell)?

(Multiple Choice)

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Question 83

Which of the following atoms or ions has a single unpaired electron?

(Multiple Choice)

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Question 84

What is the frequency (, in Hz) of the photons emitted by a He-Ne laser with a wavelength () of 632.8 nm?

(Multiple Choice)

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Question 85

The 2 subshell contains how many total orbitals?

(Multiple Choice)

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Question 86

Place these types of radiation in order of increasing energy per photon. I. Yellow light from a street lamp. II. X-rays from a dental X-ray. III. Microwaves from your cell phone. IV. Radio waves from your favorite FM station.

(Short Answer)

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Question 87

Arrange the following elements in order of increasing first ionization energy: ₃Li, ₉F, ₁₂Mg, ₁₅P, ₁₇Cl.

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Question 88

The fact that the absorption and emission spectra of atoms and their ions are different is evidence that the spectra are due to ________

(Multiple Choice)

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Question 89

Subshells are ________

(Multiple Choice)

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Question 90

Which one of the following diagrams represents the electron configuration of a nitrogen atom?

(Multiple Choice)

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Question 91

A shell consists of all ________

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Question 92

An orbital's orientation in space is determined by ________

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Question 93

Which atom or ion has the largest number of unpaired electrons?

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Question 94

Which prediction regarding the formation of a monatomic ion most likely is not correct?

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Question 95

Which listing has the orbitals in order of increasing energy in a multielectron atom?

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Question 96

What is meant when two or more orbitals are said to be degenerate?

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Question 97

Which statement about electromagnetic radiation is not correct?

(Multiple Choice)

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Question 98

Copper forms a cation with a charge of 1, but the element to the right of it in the periodic table (Zn) forms a cation with a 2 charge. Use your knowledge of electron configurations to explain this observation.

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Question 99

What is the ground-state electron configuration of an Ni²^ ion?

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Question 100

Showing 81 - 100 of 166

Exam 7: A Quantum Model of Atoms: Waves and Particles

De Broglie reasoned that for the electron in the hydrogen atom to behave as a stable circular wave, the circumference of the electron's orbit must be ________

The work function of sodium is   2.9  1019 J. What is the maximum wavelength that can cause ejection of photoelectrons from a sodium surface?

Which of the following orbitals is the lowest in energy (assuming they are all in the same shell)?

Which of the following atoms or ions has a single unpaired electron?

What is the frequency (, in Hz) of the photons emitted by a He-Ne laser with a wavelength () of 632.8 nm?

The 2 subshell contains how many total orbitals?

Place these types of radiation in order of increasing energy per photon. I. Yellow light from a street lamp. II. X-rays from a dental X-ray. III. Microwaves from your cell phone. IV. Radio waves from your favorite FM station.

Arrange the following elements in order of increasing first ionization energy: 3Li, 9F, 12Mg, 15P, 17Cl.

The fact that the absorption and emission spectra of atoms and their ions are different is evidence that the spectra are due to ________

Subshells are ________

Which one of the following diagrams represents the electron configuration of a nitrogen atom?

A shell consists of all ________

An orbital's orientation in space is determined by ________

Which atom or ion has the largest number of unpaired electrons?

Which prediction regarding the formation of a monatomic ion most likely is not correct?

Which listing has the orbitals in order of increasing energy in a multielectron atom?

What is meant when two or more orbitals are said to be degenerate?

Which statement about electromagnetic radiation is not correct?

Copper forms a cation with a charge of 1, but the element to the right of it in the periodic table (Zn) forms a cation with a 2 charge. Use your knowledge of electron configurations to explain this observation.

What is the ground-state electron configuration of an Ni2 ion?

Matter and Energy: The Origin of the Universe

Atoms, Ions, and Molecules: Matter Starts Here

Stoichiometry: Mass, Formulas, and Reactions

Solution Chemistry: The Hydrosphere

Thermochemistry: Energy Changes in Reactions

Properties of Gases: The Air We Breathe

Chemical Bonds: What Makes a Gas a Greenhouse Gas

Molecular Geometry: Shape Determines Function

Intermolecular Forces: The Uniqueness of Water

Solutions: Properties and Behavior

Solids: Crystals, Alloys, and Polymers

Chemical Kinetics: Reactions in the Atmosphere

Chemical Equilibrium: How Much Product Does a Reaction Really Make

Acidbase Equilibria: Proton Transfer in Biological Systems

Additional Aqueous Equilibria: Chemistry and the Oceans

Thermodynamics: Spontaneous and Nonspontaneous Reactions and Processes

Electrochemistry: The Quest for Clean Energy

Nuclear Chemistry: Applications to Energy and Medicine

Organic and Biological Molecules: the Compounds of Life

The Main Group Elements: Life and the Periodic Table

Transition Metals: Biological and Medical Applications

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The work function of sodium is   2.9  10^¹⁹ J. What is the maximum wavelength that can cause ejection of photoelectrons from a sodium surface?

Arrange the following elements in order of increasing first ionization energy: ₃Li, ₉F, ₁₂Mg, ₁₅P, ₁₇Cl.

What is the ground-state electron configuration of an Ni²^ ion?