Question 1

Moseley used X-rays to determine the atomic mass of each element.

Accepted Answer

A) True 
 B)False

Question 2

Choose the paramagnetic atom or ion: Zn, Zn2+, Mn2+, Ar, Al3+.

Accepted Answer

A)  Zn 
B)  Zn2+ 
C)  Mn2+ 
D)  Ar 
E)  Al3+ 
A)  Zn 
B)  Zn2+ 
C)  Mn2+ 
D)  Ar 
E)  Al3+

Question 3

The boiling point for gallium is 2403°C. The boiling point for thallium is 1457°C. Which of the following would be the predicted boiling point for indium?

Accepted Answer

A)  3860°C 
B)  1287°C 
C)  946°C 
D)  1930°C 
E)  730°C 
A)  3860°C 
B)  1287°C 
C)  946°C 
D)  1930°C 
E)  730°C

Question 4

The transition elements refer to what group of elements?

Accepted Answer

A)  s-block elements 
B)  d-block elements 
C)  actinides 
D)  lanthanides 
E)  p-block elements 
A)  s-block elements 
B)  d-block elements 
C)  actinides 
D)  lanthanides 
E)  p-block elements

Question 5

Paramagnetic is not the same as magnetic.

Accepted Answer

A) True 
 B)False

Question 6

List in order of increasing size: K+, Se2-, Cl-, Na+, S2-.

Accepted Answer

A)  Cl- 2- + + 2- 
B)  Na+ + - 2- 2- 
C)  S2- + - 2- + 
D)  Cl- 2- + + 2- 
E)  K+ + - 2- 2- 
A)  Cl- 2- + + 2- 
B)  Na+ + - 2- 2- 
C)  S2- + - 2- + 
D)  Cl- 2- + + 2- 
E)  K+ + - 2- 2-

Question 7

Which of the following could never be isoelectronic species?

Accepted Answer

A)  anions of two different elements 
B)  cations of two different elements 
C)  an anion and a cation 
D)  an anion and an atom 
E)  atoms of two different elements 
A)  anions of two different elements 
B)  cations of two different elements 
C)  an anion and a cation 
D)  an anion and an atom 
E)  atoms of two different elements

Question 8

The actinides refer to what group of elements?

Accepted Answer

A)  s-block elements 
B)  d-block elements 
C)  f-block elements of atomic number 58 through 71 
D)  f-block elements of atomic number 90 through 103 
E)  p-block elements 
A)  s-block elements 
B)  d-block elements 
C)  f-block elements of atomic number 58 through 71 
D)  f-block elements of atomic number 90 through 103 
E)  p-block elements

Question 9

What is the relationship between ionization energy and atomic radii?

Accepted Answer

A)  Energy increases as radii increase. 
B)  Energy is negative for all large radii. 
C)  Energy decreases as radii decrease. 
D)  Energy decreases as radii increase 
E)  Energy increases as as radii decrease 
A)  Energy increases as radii increase. 
B)  Energy is negative for all large radii. 
C)  Energy decreases as radii decrease. 
D)  Energy decreases as radii increase 
E)  Energy increases as as radii decrease

Question 10

Choose the paramagnetic atom or ion: Ca, Ne, Sc3+, Cl-, Na.

Accepted Answer

A)  Ca 
B)  Ne 
C)  Sc3+ 
D)  Cl- 
E)  Na 
A)  Ca 
B)  Ne 
C)  Sc3+ 
D)  Cl- 
E)  Na

Question 11

The first ionization potentials for calcium and barium are 589.7 kJ/mol and 502.8 kJ/mol. What is the predicted first ionization potential for strontium?

Accepted Answer

A)  546.3 kJ/mol 
B)  1092.5 kJ/mol 
C)  86.9 kJ/mol 
D)  435.7 kJ/mol 
E)  588 kJ/mol 
A)  546.3 kJ/mol 
B)  1092.5 kJ/mol 
C)  86.9 kJ/mol 
D)  435.7 kJ/mol 
E)  588 kJ/mol

Question 12

Which of the following statements is INCORRECT?

Accepted Answer

A)  The atomic radius decreases from left to right through a period of elements. 
B)  Cations are larger than the atoms from which they are formed. 
C)  The metallic character of elements decreases from left to right through a period of elements. 
D)  The ionization energy increases from left to right through a period of elements. 
E)  The atomic radius increases down the periodic table. 
A)  The atomic radius decreases from left to right through a period of elements. 
B)  Cations are larger than the atoms from which they are formed. 
C)  The metallic character of elements decreases from left to right through a period of elements. 
D)  The ionization energy increases from left to right through a period of elements. 
E)  The atomic radius increases down the periodic table.

Question 13

Among the alkali metals, cesium reacts more rapidly than sodium because:

Accepted Answer

A)  cesium has more electrons 
B)  cesium has more neutrons 
C)  the valence electron of cesium is at a greater average distance from the nucleus 
D)  cesium has a higher atomic weight 
E)  cesium has more protons 
A)  cesium has more electrons 
B)  cesium has more neutrons 
C)  the valence electron of cesium is at a greater average distance from the nucleus 
D)  cesium has a higher atomic weight 
E)  cesium has more protons

Question 14

Ions always adopt the electron configuration of a nobel gas.

Accepted Answer

A) True 
 B)False

Question 15

What is the general relationship between electron affinity and atomic radii?

Accepted Answer

A)  Electron affinity becomes more negative as radii increases. 
B)  Electron affinity becomes more negative as radii decreases. 
C)  Electron affinity becomes positive as radii decreases. 
D)  Electron affinity becomes positive as radii increases. 
E)  The two quantities are unrelated 
A)  Electron affinity becomes more negative as radii increases. 
B)  Electron affinity becomes more negative as radii decreases. 
C)  Electron affinity becomes positive as radii decreases. 
D)  Electron affinity becomes positive as radii increases. 
E)  The two quantities are unrelated

Question 16

The number of valence electrons for atomic potassium is ________.

Accepted Answer

A)  1 
B)  5 
C)  6 
D)  15 
E)  19 
A)  1 
B)  5 
C)  6 
D)  15 
E)  19

Question 17

List in order of increasing charge of the most common ion: S, Na, F, Ca, Al

Accepted Answer

A)  S2-, Na-, F+, Ca2+, Al3+ 
B)  Ca2-, F-, Al+, Na2+, S3+ 
C)  F2-, S-, Ca+, Al2+, Na3+ 
D)  S2-, F-, Na+, Ca2+, Al3+ 
E)  Al2-, Ca-, F+, Na2+, S3+ 
A)  S2-, Na-, F+, Ca2+, Al3+ 
B)  Ca2-, F-, Al+, Na2+, S3+ 
C)  F2-, S-, Ca+, Al2+, Na3+ 
D)  S2-, F-, Na+, Ca2+, Al3+ 
E)  Al2-, Ca-, F+, Na2+, S3+

Question 18

Which of the listed elements is the poorest conductor of both heat and electricity?

Accepted Answer

A)  aluminum 
B)  bismuth 
C)  cobalt 
D)  magnesium 
E)  phosphorus 
A)  aluminum 
B)  bismuth 
C)  cobalt 
D)  magnesium 
E)  phosphorus

Question 19

Most transition elements form some monatomic ions that are not:

Accepted Answer

A)  isoelectronic with any other cations 
B)  isoelectronic with any noble gas 
C)  isoelectronic with any neutral atom 
D)  isoelectronic with any other species 
E)  isoelectronic with any other transition metal ion 
A)  isoelectronic with any other cations 
B)  isoelectronic with any noble gas 
C)  isoelectronic with any neutral atom 
D)  isoelectronic with any other species 
E)  isoelectronic with any other transition metal ion

Question 20

Choose the species from which one electron could most easily be removed.

Accepted Answer

A)  Cl 
B)  K+ 
C)  K 
D)  Ca+ 
E)  Ar 
A)  Cl 
B)  K+ 
C)  K 
D)  Ca+ 
E)  Ar

Exam 9: The Periodic Table and Some Atomic Properties

Moseley used X-rays to determine the atomic mass of each element.

Choose the paramagnetic atom or ion: Zn, Zn2+, Mn2+, Ar, Al3+.

The boiling point for gallium is 2403°C. The boiling point for thallium is 1457°C. Which of the following would be the predicted boiling point for indium?

The transition elements refer to what group of elements?

Paramagnetic is not the same as magnetic.

List in order of increasing size: K+, Se2-, Cl-, Na+, S2-.

Which of the following could never be isoelectronic species?

The actinides refer to what group of elements?

What is the relationship between ionization energy and atomic radii?

Choose the paramagnetic atom or ion: Ca, Ne, Sc3+, Cl-, Na.

The first ionization potentials for calcium and barium are 589.7 kJ/mol and 502.8 kJ/mol. What is the predicted first ionization potential for strontium?

Which of the following statements is INCORRECT?

Among the alkali metals, cesium reacts more rapidly than sodium because:

Ions always adopt the electron configuration of a nobel gas.

What is the general relationship between electron affinity and atomic radii?

The number of valence electrons for atomic potassium is ________.

List in order of increasing charge of the most common ion: S, Na, F, Ca, Al

Which of the listed elements is the poorest conductor of both heat and electricity?

Most transition elements form some monatomic ions that are not:

Choose the species from which one electron could most easily be removed.

Matter - Its Properties and Measurement

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Introduction to Reactions in Aqueous Solutions

Gases

Thermochemistry

Electrons in Atoms

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Additional Aspects

Intermolecular Forces: Liquids and Solids

Solutions and Their Physical Properties

Chemical Kinetics

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acid-Base Equilibria

Solubility and Complex-Ion Equilibria

Spontaneous Change: Entropy and Free Energy

Electrochemistry

Main Group Elements I: Groups 1, 2, 13, and 14

Main Group Elements II: Groups 18, 17, 16, 15, and Hydrogen

The Transition Elements

Complex Ions and Coordination Compounds

Nuclear Chemistry 1-41

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

Filters

Choose the paramagnetic atom or ion: Zn, Zn²⁺, Mn²⁺, Ar, Al³⁺.

List in order of increasing size: K⁺, Se^{2^-}, Cl^-, Na⁺, S^{2^-}.

Choose the paramagnetic atom or ion: Ca, Ne, Sc³⁺, Cl-, Na.