Question 1

Select the most acidic compound from the following.

Accepted Answer

A)  SO2 
B)  Al2O3 
C)  CaO 
D)  PbO 
E)  H2O 
A)  SO2 
B)  Al2O3 
C)  CaO 
D)  PbO 
E)  H2O A

Question 2

Select the correct electron configuration for sulfur (Z = 16).

Accepted Answer

A)  1s21p62s22p6 
B)  1s22s22p83s23p4 
C)  1s22s22p83s23p2 
D)  1s22s22p63s23p4 
E)  1s22s22p63s23d4 
A)  1s21p62s22p6 
B)  1s22s22p83s23p4 
C)  1s22s22p83s23p2 
D)  1s22s22p63s23p4 
E)  1s22s22p63s23d4 D

Question 3

Which of the following elements has the largest atomic size?

Accepted Answer

A)  S 
B)  Ca 
C)  Ba 
D)  Po 
E)  Rn 
A)  S 
B)  Ca 
C)  Ba 
D)  Po 
E)  Rn C

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 are 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 are correct.

Question 5

The most acidic 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 6

Which one of the following oxides does not react with water to form acid solutions?

Accepted Answer

A)  CO2 
B)  SO3 
C)  BaO 
D)  NO2 
E)  Cl2O7 
A)  CO2 
B)  SO3 
C)  BaO 
D)  NO2 
E)  Cl2O7

Question 7

In moving down a group in the periodic table, the oxides of the elements become more acidic in nature.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following electron configurations represents the ground state of an element?

Accepted Answer

A)  [Ne]3s13p1 
B)  [He]2s12p3 
C)  [Ne]3s23p23d1 
D)  [Ne]3s23p33d1 
E)  [Ne]3s23p3 
A)  [Ne]3s13p1 
B)  [He]2s12p3 
C)  [Ne]3s23p23d1 
D)  [Ne]3s23p33d1 
E)  [Ne]3s23p3

Question 9

Select the paramagnetic ion.

Accepted Answer

A)  Cu+ 
B)  Ag+ 
C)  Fe3+ 
D)  Cd2+ 
E)  Ca2+ 
A)  Cu+ 
B)  Ag+ 
C)  Fe3+ 
D)  Cd2+ 
E)  Ca2+

Question 10

In Mendeleev's version of the periodic table, the elements were arranged in order of increasing atomic number.

Accepted Answer

A) True 
 B)False

Question 11

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

Question 12

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 13

Which of the following sets of elements have the [noble gas]ns2np2 valence electron configuration?

Accepted Answer

A)  O, S, Se, Te, Po 
B)  N, P, As, Sb, Bi 
C)  F, Cl, Br, I, At 
D)  C, Si, Ge, Sn, Pb 
E)  Ti, Zr, Hf 
A)  O, S, Se, Te, Po 
B)  N, P, As, Sb, Bi 
C)  F, Cl, Br, I, At 
D)  C, Si, Ge, Sn, Pb 
E)  Ti, Zr, Hf

Question 14

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 15

Electron affinities of neutral atoms may be positive or negative.

Accepted Answer

A) True 
 B)False

Question 16

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 17

Hund's rule is used to predict the electron configuration of atoms in excited states.

Accepted Answer

A) True 
 B)False

Question 18

Elements with ________________ first ionization energies and ___________ electron affinities generally form cations.

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 are 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 are correct.

Question 19

Select the most basic compound from the following.

Accepted Answer

A)  Bi2O3 
B)  SiO2 
C)  Cs2O 
D)  Na2O 
E)  H2O 
A)  Bi2O3 
B)  SiO2 
C)  Cs2O 
D)  Na2O 
E)  H2O

Question 20

Select the element with the least metallic character.

Accepted Answer

A)  Sn 
B)  Sr 
C)  Tl 
D)  Ge 
E)  Ga 
A)  Sn 
B)  Sr 
C)  Tl 
D)  Ge 
E)  Ga

Exam 8: Electron Configuration and Chemical Periodicity

Select the most acidic compound from the following.

Select the correct electron configuration for sulfur (Z = 16).

Which of the following elements has the largest atomic size?

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

The most acidic oxides are formed from elements found in the _________________ region of the periodic table.

Which one of the following oxides does not react with water to form acid solutions?

In moving down a group in the periodic table, the oxides of the elements become more acidic in nature.

Which of the following electron configurations represents the ground state of an element?

Select the paramagnetic ion.

In Mendeleev's version of the periodic table, the elements were arranged in order of increasing atomic number.

Which of the following elements is paramagnetic?

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

Which of the following sets of elements have the [noble gas]ns2np2 valence electron configuration?

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.)

Electron affinities of neutral atoms may be positive or negative.

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

Hund's rule is used to predict the electron configuration of atoms in excited states.

Elements with ________________ first ionization energies and ___________ electron affinities generally form cations.

Select the most basic compound from the following.

Select the element with the least metallic character.

Keys to Studying Chemistry Definitions, Units, and Problem Solving

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 Reaction Direction

Electrochemistry Chemical Change and Electrical Work

The Elements in Nature and Industry

Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

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

Which of the following sets of elements have the [noble gas]ns²np² valence electron configuration?

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.)

Elements with ______ first ionization energies and _ electron affinities generally form cations.