Question 1

The electron configuration of the valence electrons of an atom in its ground state is ns2np3. This atom is a group __________ element.

Accepted Answer

Question 2

The condensed electron configuration of krypton, element 36, is __________.

Accepted Answer

A) [Kr]4s23d8 
B) [Ar]4s4 
C) [Kr]4s43d8 
D) [Ar]3d104s24p6 
E) [Ar]4s43d4 
A) [Kr]4s23d8 
B) [Ar]4s4 
C) [Kr]4s43d8 
D) [Ar]3d104s24p6 
E) [Ar]4s43d4

Question 3

Which one of the quantum numbers does not result from the solution of the Schrodinger equation?

Accepted Answer

A) principal 
B) azimuthal 
C) magnetic 
D) spin 
E) angular momentum 
A) principal 
B) azimuthal 
C) magnetic 
D) spin 
E) angular momentum

Question 4

The wavelength of light that has a frequency of 1.20 ×1013s-1 is __________ m.

Accepted Answer

A) 25.0 
B) 2.50 × 10-5 
C) 0.0400 
D) 12.0 
E) 2.5 
A) 25.0 
B) 2.50 × 10-5 
C) 0.0400 
D) 12.0 
E) 2.5

Question 5

In the de Broglie formula describing the movement of an electron about the nucleus, the quantity "mv" is called its __________.

Accepted Answer

The answer of In the de Broglie formula describing the...

Question 6

What is the frequency (s-1)of electromagnetic radiation that has a wavelength of 0.53 m?

Accepted Answer

A) 5.7 × 108 
B) 1.8 × 10-9 
C) 1.6 × 108 
D) 1.3 × 10-33 
E) 1.3 × 1033 
A) 5.7 × 108 
B) 1.8 × 10-9 
C) 1.6 × 108 
D) 1.3 × 10-33 
E) 1.3 × 1033

Question 7

The lowest orbital energy is reached when the number of electrons with the same spin is maximized. This statement describes __________.

Accepted Answer

A) Pauli Exclusion Principle 
B) Planck's constant 
C) deBroglie hypothesis 
D) Heisenberg Uncertainty Principle 
E) Hund's rule 
A) Pauli Exclusion Principle 
B) Planck's constant 
C) deBroglie hypothesis 
D) Heisenberg Uncertainty Principle 
E) Hund's rule

Question 8

Electromagnetic radiation travels through vacuum at a speed of __________ m/s.

Accepted Answer

A) 186,000 
B) 125 
C) 3.00 × 108 
D) 10,000 
E) It depends on wavelength. 
A) 186,000 
B) 125 
C) 3.00 × 108 
D) 10,000 
E) It depends on wavelength.

Question 9

At what speed (m/s)must a 10.0-mg object be moving to have a de Broglie wavelength of 3.3 × 10-41 m?

Accepted Answer

A) 4.1 
B) 1.9 × 10-11 
C) 2.0 × 1012 
D) 3.3 × 10-42 
E) 1.9 × 1013 
A) 4.1 
B) 1.9 × 10-11 
C) 2.0 × 1012 
D) 3.3 × 10-42 
E) 1.9 × 1013

Question 10

According to the Heisenberg Uncertainty Principle, it is impossible to know precisely both the position and the __________ of an electron.

Accepted Answer

A) mass 
B) color 
C) momentum 
D) shape 
E) charge 
A) mass 
B) color 
C) momentum 
D) shape 
E) charge

Question 11

Of the following, __________ radiation has the longest wavelength and __________ radiation has the greatest energy. gamma ultraviolet visible

Accepted Answer

A) ultraviolet, gamma 
B) visible, ultraviolet 
C) gamma, gamma 
D) visible, gamma 
E) gamma, visible 
A) ultraviolet, gamma 
B) visible, ultraviolet 
C) gamma, gamma 
D) visible, gamma 
E) gamma, visible

Question 12

All of the orbitals in a given electron shell have the same value of the __________ quantum number.

Accepted Answer

A) principal 
B) angular momentum 
C) magnetic 
D) spin 
E) psi 
A) principal 
B) angular momentum 
C) magnetic 
D) spin 
E) psi

Question 13

Which quantum numbers must be the same for the orbitals that they designate to be degenerate in a one-electron system (such as hydrogen)?

Accepted Answer

A) n, l, and ml 
B) n and l only 
C) l and ml 
D) ml only 
E) n only 
A) n, l, and ml 
B) n and l only 
C) l and ml 
D) ml only 
E) n only

Question 14

What is the wavelength (angstroms)of a photon that has an energy of 4.38 × 10-18 J?

Accepted Answer

A) 454 
B) 2.30 × 107 
C) 6.89 × 1015 
D) 1.45 × 10-16 
E) 1.31 × 10-9 
A) 454 
B) 2.30 × 107 
C) 6.89 × 1015 
D) 1.45 × 10-16 
E) 1.31 × 10-9

Question 15

The energy of a photon that has a wavelength of 8.33 x 10-6 m is __________ J.

Accepted Answer

A) 2.20 × 10-26 
B) 3.60 × 1013 
C) 2.39 × 10-20 
D) 2.7 × 109 
E) 4.5 × 10-25 
A) 2.20 × 10-26 
B) 3.60 × 1013 
C) 2.39 × 10-20 
D) 2.7 × 109 
E) 4.5 × 10-25

Question 16

All of the __________ have a valence shell electron configuration nsl.

Accepted Answer

A) noble gases 
B) halogens 
C) chalcogens 
D) alkali metals 
E) alkaline earth metals 
A) noble gases 
B) halogens 
C) chalcogens 
D) alkali metals 
E) alkaline earth metals

Question 17

Electromagnetic radiation with a wavelength of 531 nm appears as green light to the human eye. The energy of one photon of this light is 3.74 × 10-19 J. Thus, a laser that emits 1.3 × 10-2 J of energy in a pulse of light at this wavelength produces __________ photons in each pulse.

Accepted Answer

A) 2.9 × 10-17 
B) 9.2 × 10-24 
C) 1.8 × 1019 
D) 3.5 × 1016 
E) 6.5 × 1013 
A) 2.9 × 10-17 
B) 9.2 × 10-24 
C) 1.8 × 1019 
D) 3.5 × 1016 
E) 6.5 × 1013

Question 18

The principal quantum number for the outermost electrons in a Ca atom in the ground state is __________.

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
E) 6 
A) 2 
B) 3 
C) 4 
D) 5 
E) 6

Question 19

Which of the following elements has a ground-state electron configuration different from the predicted one?

Accepted Answer

A) Cu 
B) Ca 
C) Xe 
D) Cl 
E) Ti 
A) Cu 
B) Ca 
C) Xe 
D) Cl 
E) Ti

Question 20

Which of the subshells below do not exist due to the constraints upon the angular momentum quantum number?

Accepted Answer

A) 2d 
B) 2s 
C) 2p 
D) all of the above 
E) none of the above 
A) 2d 
B) 2s 
C) 2p 
D) all of the above 
E) none of the above

Exam 6: Electronic Structure of Atoms

The electron configuration of the valence electrons of an atom in its ground state is ns2np3. This atom is a group __________ element.

The condensed electron configuration of krypton, element 36, is __________.

Which one of the quantum numbers does not result from the solution of the Schrodinger equation?

The wavelength of light that has a frequency of 1.20 ×1013s-1 is __________ m.

In the de Broglie formula describing the movement of an electron about the nucleus, the quantity "mv" is called its __________.

What is the frequency (s-1)of electromagnetic radiation that has a wavelength of 0.53 m?

The lowest orbital energy is reached when the number of electrons with the same spin is maximized. This statement describes __________.

Electromagnetic radiation travels through vacuum at a speed of __________ m/s.

At what speed (m/s)must a 10.0-mg object be moving to have a de Broglie wavelength of 3.3 × 10-41 m?

According to the Heisenberg Uncertainty Principle, it is impossible to know precisely both the position and the __________ of an electron.

Of the following, __________ radiation has the longest wavelength and __________ radiation has the greatest energy. gamma ultraviolet visible

All of the orbitals in a given electron shell have the same value of the __________ quantum number.

Which quantum numbers must be the same for the orbitals that they designate to be degenerate in a one-electron system (such as hydrogen)?

What is the wavelength (angstroms)of a photon that has an energy of 4.38 × 10-18 J?

The energy of a photon that has a wavelength of 8.33 x 10-6 m is __________ J.

All of the __________ have a valence shell electron configuration nsl.

Electromagnetic radiation with a wavelength of 531 nm appears as green light to the human eye. The energy of one photon of this light is 3.74 × 10-19 J. Thus, a laser that emits 1.3 × 10-2 J of energy in a pulse of light at this wavelength produces __________ photons in each pulse.

The principal quantum number for the outermost electrons in a Ca atom in the ground state is __________.

Which of the following elements has a ground-state electron configuration different from the predicted one?

Which of the subshells below do not exist due to the constraints upon the angular momentum quantum number?

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Thermochemistry

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

The electron configuration of the valence electrons of an atom in its ground state is ns²np³. This atom is a group __________ element.

The wavelength of light that has a frequency of 1.20 ×10¹³s^-1 is __________ m.

What is the frequency (s^-1)of electromagnetic radiation that has a wavelength of 0.53 m?

At what speed (m/s)must a 10.0-mg object be moving to have a de Broglie wavelength of 3.3 × 10^-41 m?

Of the following, radiation has the longest wavelength and radiation has the greatest energy. gamma ultraviolet visible

What is the wavelength (angstroms)of a photon that has an energy of 4.38 × 10^-18 J?

The energy of a photon that has a wavelength of 8.33 x 10^-⁶ m is __________ J.

All of the __________ have a valence shell electron configuration ns^l.

Electromagnetic radiation with a wavelength of 531 nm appears as green light to the human eye. The energy of one photon of this light is 3.74 × 10^-19 J. Thus, a laser that emits 1.3 × 10^-2 J of energy in a pulse of light at this wavelength produces __________ photons in each pulse.