Question 1

Which of the following is the general electron configuration for the outermost electrons of elements in the alkaline earth group?

Accepted Answer

A)  ns1
B)  ns2
C)  ns2np4
D)  ns2np5
E)  ns2np6(n -1) d6F) A) and B)
G) None of the above

Question 2

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 3

Consider the following reaction: 3Li + Z  →\rarr→  Li3Z. What is the formula for the compound if we substitute sodium for lithium?

Accepted Answer

A)  NaZ
B)  Na2Z
C)  NaZ2
D)  Na3Z
E)  NaZ3 F) None of the above
G) A) and B)

Question 4

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 5

Which of the following elements has the smallest first ionization energy?

Accepted Answer

A)  Cl
B)  Na
C)  Be
D)  K
E)  AsF) B) and D)
G) All of the above

Question 6

The elements in Group 7A are known by what name?

Accepted Answer

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

Question 7

The second ionization energy of Mg is ________ than its first ionization energy, and is __________ than the second ionization energy of Na.

Accepted Answer

A)  higher, higher
B)  lower, higher
C)  higher, lower
D)  lower, lowerE) B) and C)
F) C) and D)

Question 8

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) B) and D)

Question 9

Consider the following reaction: 3Li + Z $\rarr$ Li3Z.
What is a reasonable guess for the identity of element Z?

Accepted Answer

Nitrogen, or other e...

Question 10

Which ion is isoelectronic with Ar?

Accepted Answer

A)  Fe2+
B)  F-
C)  Br-
D)  Ga3+
E)  Ca2+F) A) and B)
G) A) and C)

Question 11

Which element will display an unusually large jump in ionization energy values between I3 and I4, its third and fourth ionization energies?

Accepted Answer

A)  Na
B)  Mg
C)  Al
D)  Si
E)  PF) A) and D)
G) B) and E)

Question 12

How many valence electrons does an oxygen atom have?

Accepted Answer

A)  2
B)  4
C)  6
D)  7
E)  8F) A) and D)
G) C) and D)

Question 13

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 D)
G) A) and B)

Question 14

Which of the following elements behaves chemically similarly to oxygen?

Accepted Answer

A)  magnesium
B)  sodium
C)  sulfur
D)  chlorine
E)  ironF) berylliumG) D) and E)
H) A) and B)

Question 15

Which of the following is the electron configuration for the bromide ion?

Accepted Answer

A)  [Ar]
B)  [Ar]4s23d104p7
C)  [Kr]
D)  [Kr]5s24d105p7
E)  [Xe]F) A) and B)
G) D) and E)

Question 16

Which one of the following ions has the largest radius?

Accepted Answer

A)  Cl-
B)  K+
C)  S2-
D)  Na+
E)  O2-F) A) and B)
G) None of the above

Question 17

The representative elements are those with unfilled energy levels in which the "last electron" was added to

Accepted Answer

A)  an s orbital.
B)  an s or p orbital.
C)  a d orbital.
D)  a p or d orbital.
E)  an f orbital.F) All of the above
G) A) and E)

Question 18

Which of the following elements has the greatest metallic character?

Accepted Answer

A)  Ca
B)  Mg
C)  Ba
D)  As
E)  SeF) B) and E)
G) B) and D)

Question 19

Which of the following is a basic oxide?

Accepted Answer

A)  NO2
B)  H2O
C)  Na2O
D)  SnO
E)  SO2F) C) and E)
G) A) and E)

Question 20

Why is the Mg2+ ion smaller than F-, even though they are isoelectronic?

Accepted Answer

Mg²⁺ has a h...

Exam 8: The Periodic Table

Which of the following is a basic oxide?

Correct AnswerverifiedShow Answer

Consider the following reaction: 3Li + Z →\rarr→ Li3Z. What is a reasonable guess for the identity of element Z?

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

Which of the following is the general electron configuration for the outermost electrons of elements in the alkaline earth group?

Correct AnswerverifiedShow Answer

Why is the Mg2+ ion smaller than F-, even though they are isoelectronic?

Correct AnswerverifiedMg2+ has a h...View AnswerShow 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

Which element will display an unusually large jump in ionization energy values between I3 and I4, its third and fourth ionization energies?

Correct AnswerverifiedShow Answer

Which of the following elements behaves chemically similarly to oxygen?

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Consider the following reaction: 3Li + Z →\rarr→ Li3Z. What is the formula for the compound if we substitute sodium for lithium?

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Which ion is isoelectronic with Ar?

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The representative elements are those with unfilled energy levels in which the "last electron" was added to

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Which of the following is the electron configuration for the bromide ion?

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

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The second ionization energy of Mg is ________ than its first ionization energy, and is __________ than the second ionization energy of Na.

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

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Which of the following elements has the greatest metallic character?

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Which of the following elements has the smallest first ionization energy?

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How many valence electrons does an oxygen atom have?

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Which one of the following ions has the largest radius?

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The elements in Group 7A are known by what name?

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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

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Consider the following reaction: 3Li + Z $\rarr$ Li₃Z. What is a reasonable guess for the identity of element Z?

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Nitrogen, or other e...
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Why is the Mg²⁺ ion smaller than F^-, even though they are isoelectronic?

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Mg²⁺ has a h...
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Because the np orbitals are ha...
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Which element will display an unusually large jump in ionization energy values between I₃ and I₄, its third and fourth ionization energies?

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Consider the following reaction: 3Li + Z $\rarr$ Li₃Z. What is the formula for the compound if we substitute sodium for lithium?

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The second ionization energy of Mg is than its first ionization energy, and is __ than the second ionization energy of Na.

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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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