Question 1

The effective nuclear charge for an atom is less than the actual nuclear charge due to

Accepted Answer

A)  shielding. 
B)  penetration. 
C)  paramagnetism. 
D)  electron-pair repulsion. 
E)  relativity. 
A)  shielding. 
B)  penetration. 
C)  paramagnetism. 
D)  electron-pair repulsion. 
E)  relativity.

Question 2

"Each electron in an atom must have its own unique set of quantum numbers" is a statement of

Accepted Answer

A)  the aufbau principle. 
B)  the Pauli exclusion principle. 
C)  Hund's rule. 
D)  the periodic law. 
E)  Heisenberg's principle. 
A)  the aufbau principle. 
B)  the Pauli exclusion principle. 
C)  Hund's rule. 
D)  the periodic law. 
E)  Heisenberg's principle.

Question 3

In forming ions of the first series of transition metals, the 4s electrons are lost before the 3d electrons.

Accepted Answer

A) True 
 B)False

Question 4

Elements with _______________ first ionization energies and ___________ electron affinities generally form anions.

Accepted Answer

A)  low, very negative 
B)  high, positive or slightly negative 
C)  low, positive or slightly negative 
D)  high, very negative 
E)  None of these choices is generally correct. 
A)  low, very negative 
B)  high, positive or slightly negative 
C)  low, positive or slightly negative 
D)  high, very negative 
E)  None of these choices is generally correct.

Question 5

An atom of element number 33 (As) is in its ground electronic state. Which one of the following sets quantum numbers could not apply to any of its electrons?

Accepted Answer

A)  n = 2; l = 1; ml = -1; ms = +½ 
B)  n = 3; l = 0; ml = 0 ; ms = -½ 
C)  n = 3; l = 2; ml = -2; ms = -½ 
D)  n = 4; l = 0; ml = 0 ; ms = -½ 
E)  n = 4; l = 2; ml = 1 ; ms = +½ 
A)  n = 2; l = 1; ml = -1; ms = +½ 
B)  n = 3; l = 0; ml = 0 ; ms = -½ 
C)  n = 3; l = 2; ml = -2; ms = -½ 
D)  n = 4; l = 0; ml = 0 ; ms = -½ 
E)  n = 4; l = 2; ml = 1 ; ms = +½

Question 6

Select the correct electron configuration for Cu (Z = 29).

Accepted Answer

A)  [Ar]4s23d9 
B)  [Ar]4s13d10 
C)  [Ar]4s24p63d3 
D)  [Ar]4s24d9 
E)  [Ar]5s24d9 
A)  [Ar]4s23d9 
B)  [Ar]4s13d10 
C)  [Ar]4s24p63d3 
D)  [Ar]4s24d9 
E)  [Ar]5s24d9

Question 7

The most basic oxides are formed from elements found in the __________________ region of the periodic table.

Accepted Answer

A)  upper right 
B)  upper left 
C)  center 
D)  lower right 
E)  lower left 
A)  upper right 
B)  upper left 
C)  center 
D)  lower right 
E)  lower left

Question 8

Select the diamagnetic ion.

Accepted Answer

A)  Cu2+ 
B)  Ni2+ 
C)  Cr3+ 
D)  Sc3+ 
E)  Cr2+ 
A)  Cu2+ 
B)  Ni2+ 
C)  Cr3+ 
D)  Sc3+ 
E)  Cr2+

Question 9

Describe how the atomic radii of main group elements vary with position in the periodic table.

Accepted Answer

Among the main group elements,

Question 10

When comparing the successive ionization energies of an element, an unusually big increase in ionization energy is seen when

Accepted Answer

A)  the first valence electron is removed. 
B)  the second valence electron is removed. 
C)  the eighth electron of is removed. 
D)  the first core electron is removed. 
E)  the last valence electron is removed. 
A)  the first valence electron is removed. 
B)  the second valence electron is removed. 
C)  the eighth electron of is removed. 
D)  the first core electron is removed. 
E)  the last valence electron is removed.

Question 11

In the ground state of an atom of silver (Ag), how many electrons will there be with the quantum number l = 1? (The n, ml and ms quantum numbers may have any appropriate values.)

Accepted Answer

A)  9 
B)  12 
C)  18 
D)  24 
E)  36 
A)  9 
B)  12 
C)  18 
D)  24 
E)  36

Question 12

Which of the following elements has the smallest atomic radius?

Accepted Answer

A)  Li 
B)  Ne 
C)  Rb 
D)  Sr 
E)  Xe 
A)  Li 
B)  Ne 
C)  Rb 
D)  Sr 
E)  Xe

Question 13

In many-electron atoms, which quantum numbers specify the energy of an electron?

Accepted Answer

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

Question 14

Electron affinities become increasingly positive toward the right hand end of a period.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following ions will be most likely to form when selenium ionizes?

Accepted Answer

A)  Se6+ 
B)  Se4+ 
C)  Se2+ 
D)  Se2¯ 
E)  Se4¯ 
A)  Se6+ 
B)  Se4+ 
C)  Se2+ 
D)  Se2¯ 
E)  Se4¯

Question 16

Select the correct set of quantum numbers (n, l, ml, ms) for the highest energy electron in the ground state of potassium, K.

Accepted Answer

A)  4, 1, -1, ½ 
B)  4, 1, 0, ½ 
C)  4, 0, 1, ½ 
D)  4, 0, 0, ½ 
E)  4, 1, 1, ½ 
A)  4, 1, -1, ½ 
B)  4, 1, 0, ½ 
C)  4, 0, 1, ½ 
D)  4, 0, 0, ½ 
E)  4, 1, 1, ½

Question 17

Metallic behavior is generally associated with

Accepted Answer

A)  elements with very negative electron affinities. 
B)  elements with low ionization energies. 
C)  elements with small atomic radii. 
D)  elements with unpaired electrons. 
E)  elements with partially filled p orbitals. 
A)  elements with very negative electron affinities. 
B)  elements with low ionization energies. 
C)  elements with small atomic radii. 
D)  elements with unpaired electrons. 
E)  elements with partially filled p orbitals.

Question 18

Elements with the highest first ionization energies are found in the ___________ region of the periodic table.

Accepted Answer

A)  lower left 
B)  upper left 
C)  center 
D)  lower right 
E)  upper right 
A)  lower left 
B)  upper left 
C)  center 
D)  lower right 
E)  upper right

Question 19

Which of the following elements will form a cation with a +2 charge?

Accepted Answer

A)  Si 
B)  Sr 
C)  Ga 
D)  Cs 
E)  S 
A)  Si 
B)  Sr 
C)  Ga 
D)  Cs 
E)  S

Question 20

Which of the following elements is paramagnetic?

Accepted Answer

A)  Kr 
B)  Zn 
C)  Sr 
D)  V 
E)  Ar 
A)  Kr 
B)  Zn 
C)  Sr 
D)  V 
E)  Ar

Exam 8: Electron Configuration and Chemical Periodicity

The effective nuclear charge for an atom is less than the actual nuclear charge due to

"Each electron in an atom must have its own unique set of quantum numbers" is a statement of

In forming ions of the first series of transition metals, the 4s electrons are lost before the 3d electrons.

Elements with _______________ first ionization energies and ___________ electron affinities generally form anions.

An atom of element number 33 (As) is in its ground electronic state. Which one of the following sets quantum numbers could not apply to any of its electrons?

Select the correct electron configuration for Cu (Z = 29).

The most basic oxides are formed from elements found in the __________________ region of the periodic table.

Select the diamagnetic ion.

Describe how the atomic radii of main group elements vary with position in the periodic table.

When comparing the successive ionization energies of an element, an unusually big increase in ionization energy is seen when

In the ground state of an atom of silver (Ag), how many electrons will there be with the quantum number l = 1? (The n, ml and ms quantum numbers may have any appropriate values.)

Which of the following elements has the smallest atomic radius?

In many-electron atoms, which quantum numbers specify the energy of an electron?

Electron affinities become increasingly positive toward the right hand end of a period.

Which of the following ions will be most likely to form when selenium ionizes?

Select the correct set of quantum numbers (n, l, ml, ms) for the highest energy electron in the ground state of potassium, K.

Metallic behavior is generally associated with

Elements with the highest first ionization energies are found in the ___________ region of the periodic table.

Which of the following elements will form a cation with a +2 charge?

Which of the following elements is paramagnetic?

Keys to the Study of Chemistry

The Components of Matter

Stoichiometry of Formulas and Equations

Three Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry: Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

The Properties of Mixtures: Solutions and Colloids

Periodic Patterns in the Main-Group Elements

Organic Compounds and the Atomic Properties of Carbon

Kinetics: Rates and Mechanisms of Chemical Reactions

Equilibrium: the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics: Entropy, Free Energy, and the Direction of Chemical Reactions

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

The Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

Elements with _____ first ionization energies and _ electron affinities generally form anions.

In the ground state of an atom of silver (Ag), how many electrons will there be with the quantum number l = 1? (The n, m_l and m_s quantum numbers may have any appropriate values.)

Select the correct set of quantum numbers (n, l, m_l, m_s) for the highest energy electron in the ground state of potassium, K.