Question 1

For which of the following reactions is the enthalpy change equal to the third ionization energy of vanadium?

Accepted Answer

A)  V2+(g)  →\rarr→ V3+(g) + e-
B)  V3+(g) + e-  →\rarr→  V2+(g) 
C)  V(g)  →\rarr→  V3+(g) + 3e-
D)  V2-(g) + e-  →\rarr→  V3-(g) 
E)  V3+(g)  →\rarr→ V4+(g) + e- F) A) and E)
G) B) and C)

Question 2

Which of the atoms listed below has the largest radius?

Accepted Answer

A)  Cl
B)  I
C)  P
D)  Sb
E)  SeF) A) and E)
G) B) and D)

Question 3

Why do the group 5A elements have relatively small electron affinities compared to the neighboring nonmetals in the corresponding rows?

Accepted Answer

Because the np orbitals are ha...

Question 4

How many 3d electrons does an Fe3+ ion have?

Accepted Answer

A)  9
B)  6
C)  5
D)  4
E)  3F) C) and E)
G) None of the above

Question 5

Which of the elements listed below has the greatest atomic radius?

Accepted Answer

A)  B
B)  Al
C)  S
D)  P
E)  SiF) A) and B)
G) C) and E)

Question 6

Which one of the following does not have [Xe] as its electronic configuration?

Accepted Answer

A)  Te2-
B)  I-
C)  Cs+
D)  Ba2+
E)  Sn4+F) A) and B)
G) A) and C)

Question 7

Which of the following elements has the greatest electron affinity (largest positive value) ?

Accepted Answer

A)  Mg
B)  Al
C)  Si
D)  P
E)  SF) C) and E)
G) A) and E)

Question 8

The general electron configuration for noble gas atoms is

Accepted Answer

A)  ns2np6
B)  ns2np5
C)  ns2np4
D)  ns2np3
E)  ns2F) A) and B)
G) A) and C)

Question 9

What is the charge on the monatomic ion of nitrogen, the nitride ion?

Accepted Answer

A)  +2
B)  +1
C)  -1
D)  -2
E)  -3F) C) and D)
G) None of the above

Question 10

The alkali metal elements are found in _______ of the periodic table.

Accepted Answer

A)  Group 1A
B)  Group 2A
C)  Group 3A
D)  Period 7
E)  Period 1F) D) and E)
G) C) and D)

Question 11

The elements in Group 2A are known by what name?

Accepted Answer

A)  transition metals
B)  halogens
C)  alkali metals
D)  alkaline earth metals
E)  noble gasesF) A) and B)
G) A) and C)

Question 12

Write the ground-state electron configuration for Ni2+.

Accepted Answer

Question 13

Briefly explain why the atomic radius decreases within a period when moving from left to right.

Accepted Answer

Effective nuclear charge incre...

Question 14

For silicon atoms, which ionization energy will show an exceptionally large increase over the preceding ionization energy?

Accepted Answer

A)  2nd
B)  3rd
C)  4th
D)  5th
E)  6thF) C) and D)
G) A) and C)

Question 15

Which of the following is the electron configuration of the iron(III) ion?

Accepted Answer

A)  [Ar]3d5
B)  [Ar]4s13d5
C)  [Ar]4s23d3
D)  [Ar]3d6
E)  [Ar]4s23d9F) A) and B)
G) C) and E)

Question 16

Which one of the following elements forms a stable 2+ cation?

Accepted Answer

A)  Kr
B)  I
C)  Se
D)  Al
E)  BaF) C) and D)
G) A) and E)

Question 17

Consider the following reaction 2A + 3F2 $\rarr$ 2AF3.What is a reasonable guess for the identity element A?

Accepted Answer

Aluminum, or other e...

Question 18

Write the ground-state electron configuration for Al3+.

Accepted Answer

Question 19

Consider the element with the electron configuration [Kr]5s24d105p5. This element is

Accepted Answer

A)  a representative element
B)  a transition metal
C)  an alkali metal
D)  an actinide element
E)  a noble gasF) A) and E)
G) B) and E)

Question 20

What is the charge on the monatomic ion that calcium forms in its compounds?

Accepted Answer

A)  +2
B)  +1
C)  -1
D)  -2
E)  -3F) C) and D)
G) B) and D)

Exam 8: Periodic Relationships Among the Elements

Which of the atoms listed below has the largest radius?

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Which of the following elements has the greatest electron affinity (largest positive value) ?

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Which of the elements listed below has the greatest atomic radius?

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Which one of the following elements forms a stable 2+ cation?

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The elements in Group 2A are known by what name?

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Consider the element with the electron configuration [Kr]5s24d105p5. This element is

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For silicon atoms, which ionization energy will show an exceptionally large increase over the preceding ionization energy?

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For which of the following reactions is the enthalpy change equal to the third ionization energy of vanadium?

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Write the ground-state electron configuration for Al3+.

Correct AnswerverifiedShow Answer

The general electron configuration for noble gas atoms is

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Which of the following is the electron configuration of the iron(III) ion?

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Why do the group 5A elements have relatively small electron affinities compared to the neighboring nonmetals in the corresponding rows?

Correct AnswerverifiedBecause the np orbitals are ha...View AnswerShow Answer

What is the charge on the monatomic ion that calcium forms in its compounds?

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Consider the following reaction 2A + 3F2 →\rarr→ 2AF3.What is a reasonable guess for the identity element A?

Correct AnswerverifiedAluminum, or other e...View AnswerShow Answer

Which one of the following does not have [Xe] as its electronic configuration?

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Briefly explain why the atomic radius decreases within a period when moving from left to right.

Correct AnswerverifiedEffective nuclear charge incre...View AnswerShow Answer

How many 3d electrons does an Fe3+ ion have?

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Write the ground-state electron configuration for Ni2+.

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The alkali metal elements are found in _______ of the periodic table.

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What is the charge on the monatomic ion of nitrogen, the nitride ion?

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Consider the element with the electron configuration [Kr]5s²4d¹⁰5p⁵. This element is

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Write the ground-state electron configuration for Al³⁺.

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Because the np orbitals are ha...
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Consider the following reaction 2A + 3F₂ $\rarr$ 2AF₃.What is a reasonable guess for the identity element A?

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Aluminum, or other e...
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Effective nuclear charge incre...
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How many 3d electrons does an Fe³⁺ ion have?

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Write the ground-state electron configuration for Ni²⁺.

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