Question 1

Given the following sets of quantum numbers for n, l, ml, and ms, which one of these sets is not possible for an electron in an atom?

Accepted Answer

Question 2

There are more unpaired electrons in the ground state electron configuration of a chromium atom than of a manganese atom.

Accepted Answer

A) True 
 B)False

Question 3

Which atom in the set [O, F, Ne, Ar, Cl, K, Ga] has the greatest electron affinity?

Accepted Answer

The answer of Which atom in the set [O, F,...

Question 4

What is the maximum number of electrons that can fill all the orbitals of a d subshell?

Accepted Answer

A) 6 
B) 8 
C) 10 
D) 12 
E) 14 
A) 6 
B) 8 
C) 10 
D) 12 
E) 14

Question 5

Given the following sets of quantum numbers for n, l, ml, and ms, which one of these sets is not possible for an electron in an atom?

Accepted Answer

Question 6

Calculate the wavelength of the spectral line in the spectrum of hydrogen for which n1 = 4 and n2 = 7.Hint: Use the Rydberg equation to solve.

Accepted Answer

A) 2.17 × 10-6 m 
B) 2.17 × 10-4 m 
C) 4.62 × 103 m 
D) 8.51 × 10-5 m 
E) 8.51 × 10-7 m 
A) 2.17 × 10-6 m 
B) 2.17 × 10-4 m 
C) 4.62 × 103 m 
D) 8.51 × 10-5 m 
E) 8.51 × 10-7 m

Question 7

A good rule of thumb is: the higher the atomic number, the greater the electronegativity of the atom.

Accepted Answer

A) True 
 B)False

Question 8

Which statement is true concerning Bohr's model of the atom?

Accepted Answer

A) The model accounted for the absorption spectra of atoms but not for the emission spectra. 
B) The model could account for the emission spectrum of hydrogen and for the Rydberg equation. 
C) The model was based on the wave properties of the electron. 
D) The model accounted for the emission spectra of atoms, but not for the absorption spectra. 
E) The model was generally successful for all atoms to which it was applied. 
A) The model accounted for the absorption spectra of atoms but not for the emission spectra. 
B) The model could account for the emission spectrum of hydrogen and for the Rydberg equation. 
C) The model was based on the wave properties of the electron. 
D) The model accounted for the emission spectra of atoms, but not for the absorption spectra. 
E) The model was generally successful for all atoms to which it was applied.

Question 9

Calculate the wavelength of an electron (mass = 9.109 × 10-31 kg)traveling at4.38 × 106 m/s.

Accepted Answer

A) 101 pm 
B) 166 pm 
C) 720 pm 
D) 298 pm 
E) 435 pm 
A) 101 pm 
B) 166 pm 
C) 720 pm 
D) 298 pm 
E) 435 pm

Question 10

How many electrons can be placed in a shell in which the principal quantum number, n = 3?

Accepted Answer

A) 2 
B) 8 
C) 16 
D) 32 
E) 18 
A) 2 
B) 8 
C) 16 
D) 32 
E) 18

Question 11

The amplitude of a wave at any given point is related to the probability of finding the electron at that location.

Accepted Answer

A) True 
 B)False

Question 12

The electron microscope makes use of the waves associated with fast moving electrons in order to observe small objects.

Accepted Answer

A) True 
 B)False

Question 13

A correct description for the electron configuration of a chromium atom is

Accepted Answer

A) [Ar] 4s1 3d5, paramagnetic. 
B) [Ar] 4s2 3d4, paramagnetic. 
C) [Ar] 4s3 3d3, paramagnetic. 
D) [Ar] 3d6, paramagnetic. 
E) [Ar] 3s2 3d4, paramagnetic. 
A) [Ar] 4s1 3d5, paramagnetic. 
B) [Ar] 4s2 3d4, paramagnetic. 
C) [Ar] 4s3 3d3, paramagnetic. 
D) [Ar] 3d6, paramagnetic. 
E) [Ar] 3s2 3d4, paramagnetic.

Question 14

The probability of finding the electron varies in space, and can be represented by the square of the ________.

Accepted Answer

The answer of The probability of finding the electron varies...

Question 15

Which statement is true?

Accepted Answer

A) The line spectra of elements are the same provided they belong to the same family. 
B) The line spectra of elements are the same provided they belong to the same family and are combined with oxygen. 
C) The line spectra of elements are the same provided they belong to the same family and are in the same physical state. 
D) The line spectra of elements can be used for separation of elements from mixtures. 
E) The line spectra of elements can be used to identify the elements. 
A) The line spectra of elements are the same provided they belong to the same family. 
B) The line spectra of elements are the same provided they belong to the same family and are combined with oxygen. 
C) The line spectra of elements are the same provided they belong to the same family and are in the same physical state. 
D) The line spectra of elements can be used for separation of elements from mixtures. 
E) The line spectra of elements can be used to identify the elements.

Question 16

Which placement of electrons is never encountered in the ground state configuration of an atom?

Accepted Answer

A) 4p4 with 4 unpaired electrons 
B) 4d5 with 5 unpaired electrons 
C) 4f 6 with 6 unpaired electrons 
D) 4f 3 with 3 unpaired electrons 
E) 4p3 with 3 unpaired electrons 
A) 4p4 with 4 unpaired electrons 
B) 4d5 with 5 unpaired electrons 
C) 4f 6 with 6 unpaired electrons 
D) 4f 3 with 3 unpaired electrons 
E) 4p3 with 3 unpaired electrons

Question 17

Which of the following choices is the correct electron configuration for a cobalt atom?

Accepted Answer

The answer of Which of the following choices is the...

Question 18

Given the following sets of quantum numbers for n, l, ml, and ms, which one of these sets is not possible for an electron in an atom?

Accepted Answer

Question 19

In the orbital diagram for boron, the fifth electron can be placed in any one of the 2p orbitals, because they are all equal in ________.

Accepted Answer

The answer of In the orbital diagram for boron, the...

Exam 8: The Quantum Mechanical Atom

Given the following sets of quantum numbers for n, l, ml, and ms, which one of these sets is not possible for an electron in an atom?

There are more unpaired electrons in the ground state electron configuration of a chromium atom than of a manganese atom.

Which atom in the set [O, F, Ne, Ar, Cl, K, Ga] has the greatest electron affinity?

What is the maximum number of electrons that can fill all the orbitals of a d subshell?

Given the following sets of quantum numbers for n, l, ml, and ms, which one of these sets is not possible for an electron in an atom?

Calculate the wavelength of the spectral line in the spectrum of hydrogen for which n1 = 4 and n2 = 7.Hint: Use the Rydberg equation to solve.

A good rule of thumb is: the higher the atomic number, the greater the electronegativity of the atom.

Which statement is true concerning Bohr's model of the atom?

Calculate the wavelength of an electron (mass = 9.109 × 10-31 kg)traveling at4.38 × 106 m/s.

How many electrons can be placed in a shell in which the principal quantum number, n = 3?

The amplitude of a wave at any given point is related to the probability of finding the electron at that location.

The electron microscope makes use of the waves associated with fast moving electrons in order to observe small objects.

A correct description for the electron configuration of a chromium atom is

The probability of finding the electron varies in space, and can be represented by the square of the ________.

Which statement is true?

Which placement of electrons is never encountered in the ground state configuration of an atom?

Which of the following choices is the correct electron configuration for a cobalt atom?

Given the following sets of quantum numbers for n, l, ml, and ms, which one of these sets is not possible for an electron in an atom?

In the orbital diagram for boron, the fifth electron can be placed in any one of the 2p orbitals, because they are all equal in ________.

A Very Brief History of Chemistry

Scientific Measurements

Elements, Compounds, and the Periodic Table

The Mole and Stoichiometry

Molecular View of Reactions in Aqueous Solutions

Oxidation-Reduction Reactions

Energy and Chemical Change

The Basics of Chemical Bonding

Theories of Bonding and Structure

Properties of Gases

Intermolecular Attractions and the Properties of Liquids and Solids

Mixtures at the Molecular Level: Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases, a Molecular Look

Acid-Base Equilibria in Aqueous Solutions

Solubility and Simultaneous Equilibria

Thermodynamics

Electrochemistry

Nuclear Reactions and Their Role in Chemistry

Metal Complexes

Organic Compounds, Polymers, and Biochemicals

Filters

Given the following sets of quantum numbers for n, l, m_l, and m_s, which one of these sets is not possible for an electron in an atom?

Given the following sets of quantum numbers for n, l, m_l, and m_s, which one of these sets is not possible for an electron in an atom?

Calculate the wavelength of the spectral line in the spectrum of hydrogen for which n₁ = 4 and n₂ = 7.Hint: Use the Rydberg equation to solve.

Calculate the wavelength of an electron (mass = 9.109 × 10^-31kg)traveling at4.38 × 10⁶ m/s.

Given the following sets of quantum numbers for n, l, m_l, and m_s, which one of these sets is not possible for an electron in an atom?