Question 1

According to ________, no two electrons in an atom can have the same four quantum numbers.

Accepted Answer

the Pauli

Question 2

A possible set of quantum numbers for the last electron added to complete an atom of gallium (Ga) in its ground state is

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 3

When a solid is heated, it emits electromagnetic radiation known as ________. An example of such radiation is the element of a stove stop burning bright red.

Accepted Answer

A)  isoelectric radiation 
B)  visible and ultraviolet radiation 
C)  blackbody radiation 
D)  paramagnetic radiation 
E)  whitebody radiation 
A)  isoelectric radiation 
B)  visible and ultraviolet radiation 
C)  blackbody radiation 
D)  paramagnetic radiation 
E)  whitebody radiation

Question 4

________ is the wavelength associated with a moving particle.

Accepted Answer

A)  The de Broglie wavelength 
B)  The Heisenburg wavelength 
C)  The Hund wavelength 
D)  The Aufbau wavelength 
E)  None of the answers is correct. 
A)  The de Broglie wavelength 
B)  The Heisenburg wavelength 
C)  The Hund wavelength 
D)  The Aufbau wavelength 
E)  None of the answers is correct.

Question 5

The ground-state electron configuration for an atom of indium is

Accepted Answer

A)  [Kr]5s24p64d5. 
B)  [Ar]4s23d104p1. 
C)  [Ar]4s24p63d5. 
D)  [Kr]5s25p64d5. 
E)  [Kr]5s24d105p1. 
A)  [Kr]5s24p64d5. 
B)  [Ar]4s23d104p1. 
C)  [Ar]4s24p63d5. 
D)  [Kr]5s25p64d5. 
E)  [Kr]5s24d105p1.

Question 6

The maximum number of electrons that can occupy an energy level described by the principal quantum number, n, is

Accepted Answer

A)  n. 
B)  n + 1. 
C)  2n. 
D)  2n2. 
E)  n2. 
A)  n. 
B)  n + 1. 
C)  2n. 
D)  2n2. 
E)  n2.

Question 7

The number of orbitals in a d subshell is

Accepted Answer

A)  1. 
B)  2. 
C)  3. 
D)  5. 
E)  7. 
A)  1. 
B)  2. 
C)  3. 
D)  5. 
E)  7.

Question 8

________ is directly proportional to the frequency of a wave.

Accepted Answer

The answer of ________ is directly proportional to the frequency...

Question 9

An electron in a 3p orbital could have a value of 2 for its angular momentum quantum number (l).

Accepted Answer

A) True 
 B)False

Question 10

What is the wavelength of light having a frequency of 4.8 × 1014 s-1? (c = 3.00 x 108 m/s)

Accepted Answer

A)  0.0016 nm 
B)  1600 m 
C)  630 nm 
D)  1600 nm 
E)  6.3 × 10-7 nm 
A)  0.0016 nm 
B)  1600 m 
C)  630 nm 
D)  1600 nm 
E)  6.3 × 10-7 nm

Question 11

What is the electron configuration for bromine?

Accepted Answer

A)  1s22s22p63s23p64s14d104p6 
B)  1s22s22p63s23p64s24d104p5 
C)  1s22s22p63s23p64s13d104p6 
D)  1s22s22p63s23p64s23d104p4 
E)  1s22s22p63s23p64s23d104p5 
A)  1s22s22p63s23p64s14d104p6 
B)  1s22s22p63s23p64s24d104p5 
C)  1s22s22p63s23p64s13d104p6 
D)  1s22s22p63s23p64s23d104p4 
E)  1s22s22p63s23p64s23d104p5

Question 12

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 × 102 nm? (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s; NA = 6.022 × 1023 /mole)

Accepted Answer

A)  256 kJ 
B)  1.71 × 105 J 
C)  4.72 × 10-43 J 
D)  12.4 kJ 
E)  2.12 × 1042 J 
A)  256 kJ 
B)  1.71 × 105 J 
C)  4.72 × 10-43 J 
D)  12.4 kJ 
E)  2.12 × 1042 J

Question 13

Which element has the following ground-state electron configuration? 1s2 2s2 2p6 3s2

Accepted Answer

A)  Na 
B)  Mg 
C)  Al 
D)  Si 
E)  Ne 
A)  Na 
B)  Mg 
C)  Al 
D)  Si 
E)  Ne

Question 14

Line spectra from all regions of the electromagnetic spectrum, including the Paschen series of infrared lines for hydrogen, are used by astronomers to identify elements present in the atmospheres of stars. Calculate the wavelength of the photon emitted when the hydrogen atom undergoes a transition from n = 5 to n = 3. (R = 1.096776 × 107 m-1)

Accepted Answer

A)  205.1 nm 
B)  384.6 nm 
C)  683.8 nm 
D)  1282 nm 
E)  > 1500 nm 
A)  205.1 nm 
B)  384.6 nm 
C)  683.8 nm 
D)  1282 nm 
E)  > 1500 nm

Question 15

In not more than three lines for each answer, briefly outline one important scientific contribution of each of the following.
a) Planck
b) De Broglie
c) Heisenberg

Accepted Answer

a. Planck is responsible for first propo

Question 16

According to scientist James Clerk Maxwell in the year 1873, a(n) ________ consists of an electric field component and a magnetic field component.

Accepted Answer

A)  electrostatic wave 
B)  isoelectric wave 
C)  atom 
D)  paramagnetic wave 
E)  electromagnetic wave 
A)  electrostatic wave 
B)  isoelectric wave 
C)  atom 
D)  paramagnetic wave 
E)  electromagnetic wave

Question 17

Each shell (principal energy level) of quantum number n contains n subshells.

Accepted Answer

A) True 
 B)False

Question 18

________ is the number of subshells in the shell designated as n = 2.

Accepted Answer

The answer of ________ is the number of subshells in...

Question 19

If one s orbital were combined with one p orbital (dumbbell shaped), which would best describe the resulting shape?

Accepted Answer

A)  spherical 
B)  mostly spherical, slightly dumbbell 
C)  an equal ratio of spherical and dumbbell 
D)  slightly spherical, mostly dumbbell 
E)  mostly dumbbell 
A)  spherical 
B)  mostly spherical, slightly dumbbell 
C)  an equal ratio of spherical and dumbbell 
D)  slightly spherical, mostly dumbbell 
E)  mostly dumbbell

Question 20

In the quantum mechanical treatment of the hydrogen atom, which one of the following combinations of quantum numbers is not allowed?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Exam 6: Quantum Theory and the Electronic Structure of Atoms

According to ________, no two electrons in an atom can have the same four quantum numbers.

A possible set of quantum numbers for the last electron added to complete an atom of gallium (Ga) in its ground state is

When a solid is heated, it emits electromagnetic radiation known as ________. An example of such radiation is the element of a stove stop burning bright red.

________ is the wavelength associated with a moving particle.

The ground-state electron configuration for an atom of indium is

The maximum number of electrons that can occupy an energy level described by the principal quantum number, n, is

The number of orbitals in a d subshell is

________ is directly proportional to the frequency of a wave.

An electron in a 3p orbital could have a value of 2 for its angular momentum quantum number (l).

What is the wavelength of light having a frequency of 4.8 × 1014 s-1? (c = 3.00 x 108 m/s)

What is the electron configuration for bromine?

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 × 102 nm? (c = 3.00 × 108 m/s; h = 6.63 × 10-34 J • s; NA = 6.022 × 1023 /mole)

Which element has the following ground-state electron configuration? 1s2 2s2 2p6 3s2

In not more than three lines for each answer, briefly outline one important scientific contribution of each of the following. a) Planck b) De Broglie c) Heisenberg

According to scientist James Clerk Maxwell in the year 1873, a(n) ________ consists of an electric field component and a magnetic field component.

Each shell (principal energy level) of quantum number n contains n subshells.

________ is the number of subshells in the shell designated as n = 2.

If one s orbital were combined with one p orbital (dumbbell shaped), which would best describe the resulting shape?

In the quantum mechanical treatment of the hydrogen atom, which one of the following combinations of quantum numbers is not allowed?

Chemistry: the Central Science

Atoms, Molecules, and Ions

Stoichiometry: Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Electron Configuration and the Periodic Table

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy, Free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

What is the wavelength of light having a frequency of 4.8 × 10¹⁴ s^-1? (c = 3.00 x 10⁸m/s)

What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 × 10² nm? (c = 3.00 × 10⁸m/s; h = 6.63 × 10^-34 J • s; N_A = 6.022 × 10²³ /mole)

Which element has the following ground-state electron configuration? 1s² 2s² 2p⁶ 3s²