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) None of the above
G) A) and B)

Question 2

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) B) and E)
G) All of the above

Question 3

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 D)
G) C) and D)

Question 4

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 E)

Question 5

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 6

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

Accepted Answer

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

Question 7

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) C) and E)

Question 8

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) None of the above
G) B) and E)

Question 9

Write the ground-state electron configuration for Al3+.

Accepted Answer

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) B) and C)
G) C) and D)

Question 11

Which of the atoms listed below has the largest radius?

Accepted Answer

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

Question 12

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) A) and E)
G) B) and C)

Question 13

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 14

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) B) and C)
G) C) and E)

Question 15

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) C) and D)
G) B) and E)

Question 16

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) None of the above

Question 17

Write the ground-state electron configuration for Ni2+.

Accepted Answer

Question 18

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

Accepted Answer

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

Question 19

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

Accepted Answer

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

Question 20

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

Accepted Answer

Effective nuclear charge incre...

Exam 8: Periodic Relationships Among the Elements

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

Correct AnswerverifiedShow Answer

Write the ground-state electron configuration for Al3+.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedEffective nuclear charge incre...View AnswerShow Answer

The general electron configuration for noble gas atoms is

Correct AnswerverifiedShow Answer

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

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

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Write the ground-state electron configuration for Ni2+.

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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

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

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

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

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

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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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Which of the atoms listed below has the largest radius?

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

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

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Write the ground-state electron configuration for Al³⁺.

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

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Effective nuclear charge incre...
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Because the np orbitals are ha...
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Write the ground-state electron configuration for Ni²⁺.

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

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