Question 1

A correct description for the electron configuration of an iron atom is

Accepted Answer

A) [Ar] 3s2 3d6, paramagnetic. 
B) [Ar] 4s2 3d6, diamagnetic. 
C) [Ar] 4s1 3d7, paramagnetic. 
D) [Ar] 3d8, paramagnetic. 
E) [Ar] 4s2 3d6, paramagnetic. 
A) [Ar] 3s2 3d6, paramagnetic. 
B) [Ar] 4s2 3d6, diamagnetic. 
C) [Ar] 4s1 3d7, paramagnetic. 
D) [Ar] 3d8, paramagnetic. 
E) [Ar] 4s2 3d6, paramagnetic.

Question 2

Which atom has the largest first ionization energy?

Accepted Answer

A) Al 
B) Sr 
C) Ga 
D) Cr 
E) Fr 
A) Al 
B) Sr 
C) Ga 
D) Cr 
E) Fr

Question 3

The frequency of a wave is related to the energy of the radiation.

Accepted Answer

A) True 
 B)False

Question 4

An electron behaves as if it were spread out in space around the nucleus in a sort of ________.

Accepted Answer

The answer of An electron behaves as if it were...

Question 5

The definite energies associated with specific wavelengths in the emission spectrum of atomic hydrogen suggest that

Accepted Answer

A) electrons have a smaller rest mass than photons. 
B) photons have a smaller rest mass than electrons. 
C) energy states of the electron in the hydrogen atom are quantized. 
D) atomic hydrogen is more stable and has a lower potential energy than molecular hydrogen. 
E) the potential energy of electrons in the atom can have any arbitrary value over a period of time, but the kinetic energy may only have certain specific values. 
A) electrons have a smaller rest mass than photons. 
B) photons have a smaller rest mass than electrons. 
C) energy states of the electron in the hydrogen atom are quantized. 
D) atomic hydrogen is more stable and has a lower potential energy than molecular hydrogen. 
E) the potential energy of electrons in the atom can have any arbitrary value over a period of time, but the kinetic energy may only have certain specific values.

Question 6

Generally speaking, both anions and cations have larger radii than their parent atoms.

Accepted Answer

A) True 
 B)False

Question 7

The number of orbitals in a subshell with l = 3 is ________.

Accepted Answer

The answer of The number of orbitals in a subshell...

Question 8

The number of orbitals in a d subshell is ________.

Accepted Answer

The answer of The number of orbitals in a d...

Question 9

Which one of the following types of radiation has the lowest frequency?

Accepted Answer

A) radio waves 
B) infrared radiation 
C) microwave radiation 
D) X-rays 
E) ultraviolet rays 
A) radio waves 
B) infrared radiation 
C) microwave radiation 
D) X-rays 
E) ultraviolet rays

Question 10

Calculate the frequency of visible light having a wavelength of 589.3 nm.

Accepted Answer

A) 176.7 s-1 
B) 1.966 × 10-15 s-1 
C) 1.391 × 10-11 s-1 
D) 5.091 × 1014 s-1 
E) 5.660 × 103 s-1 
A) 176.7 s-1 
B) 1.966 × 10-15 s-1 
C) 1.391 × 10-11 s-1 
D) 5.091 × 1014 s-1 
E) 5.660 × 103 s-1

Question 11

Calculate the wavelength of the transition from n = 2 to n = 3 for an ion with a single electron, where the charge on the ion is +2.Hint: Use the Rydberg equation when calculating transition wavelength.

Accepted Answer

The answer of Calculate the wavelength of the transition from...

Question 12

What is the wavelength of radiation which has an energy of 216.1 kJ per mole of photons?

Accepted Answer

A) 655.9 nm 
B) 546.1 nm 
C) 108.8 nm 
D) 589.3 nm 
E) 977.7 nm 
A) 655.9 nm 
B) 546.1 nm 
C) 108.8 nm 
D) 589.3 nm 
E) 977.7 nm

Question 13

An electron with an n = 2 quantum number may also have a quantum number l = 2.

Accepted Answer

A) True 
 B)False

Question 14

In the Rydberg equation, if n1 = 1, an acceptable value of n2 is ________.

Accepted Answer

Question 15

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

Accepted Answer

A) 3d4 with 4 unpaired electrons 
B) 3d7 with 7 unpaired electrons 
C) 3p1 with 1 unpaired electron 
D) 3d9 with 1 unpaired electron 
E) 4f 7 with 7 unpaired electrons 
A) 3d4 with 4 unpaired electrons 
B) 3d7 with 7 unpaired electrons 
C) 3p1 with 1 unpaired electron 
D) 3d9 with 1 unpaired electron 
E) 4f 7 with 7 unpaired electrons

Question 16

Which of the following gives a possible quantum number assignment for the last electron added to the sodium atom when developing the electron configuration using the aufbau principle?

Accepted Answer

The answer of Which of the following gives a possible...

Question 17

The notation for the subshell with n = 4 and l = 2 is

Accepted Answer

A) 4d subshell. 
B) 4p subshell. 
C) 4f subshell. 
D) 4s subshell. 
E) There is no subshell fitting this description. 
A) 4d subshell. 
B) 4p subshell. 
C) 4f subshell. 
D) 4s subshell. 
E) There is no subshell fitting this description.

Question 18

Which radiation has the longest wavelength?

Accepted Answer

A) infrared radiation 
B) radio waves 
C) microwave radiation 
D) ultraviolet rays 
E) X-rays 
A) infrared radiation 
B) radio waves 
C) microwave radiation 
D) ultraviolet rays 
E) X-rays

Question 19

The maximum number of electrons in an atom that can have the following exact same set of quantum numbers is ________.

Accepted Answer

The answer of The maximum number of electrons in an...

Question 20

For every value of n, there is an s subshell.

Accepted Answer

A) True 
 B)False

Exam 8: The Quantum Mechanical Atom

A correct description for the electron configuration of an iron atom is

Which atom has the largest first ionization energy?

The frequency of a wave is related to the energy of the radiation.

An electron behaves as if it were spread out in space around the nucleus in a sort of ________.

The definite energies associated with specific wavelengths in the emission spectrum of atomic hydrogen suggest that

Generally speaking, both anions and cations have larger radii than their parent atoms.

The number of orbitals in a subshell with l = 3 is ________.

The number of orbitals in a d subshell is ________.

Which one of the following types of radiation has the lowest frequency?

Calculate the frequency of visible light having a wavelength of 589.3 nm.

Calculate the wavelength of the transition from n = 2 to n = 3 for an ion with a single electron, where the charge on the ion is +2.Hint: Use the Rydberg equation when calculating transition wavelength.

What is the wavelength of radiation which has an energy of 216.1 kJ per mole of photons?

An electron with an n = 2 quantum number may also have a quantum number l = 2.

In the Rydberg equation, if n1 = 1, an acceptable value of n2 is ________.

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

Which of the following gives a possible quantum number assignment for the last electron added to the sodium atom when developing the electron configuration using the aufbau principle?

The notation for the subshell with n = 4 and l = 2 is

Which radiation has the longest wavelength?

The maximum number of electrons in an atom that can have the following exact same set of quantum numbers is ________.

For every value of n, there is an s subshell.

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

In the Rydberg equation, if n₁ = 1, an acceptable value of n₂ is ________.