Question 1

Concerning the electron configuration of sulfur, 1s22s22p63s23p4, which of the following represents the core electrons only

Accepted Answer

A)   1s2
B)   1s22s2
C)   1s22s22p6
D)   1s22s22p63s2
E)   3s23p4F) B) and D)
G) A) and B)

Question 2

What are the products of the following reaction
2Al(s)  + 6H+(aq)   →\rarr→

Accepted Answer

A)   2Al3+(aq)  + 3H2(g) 
B)   2Al2+(aq)  + 3H2(g) 
C)   2AlH2(s)  + H2(g) 
D)   2Al+(aq)  + 3H2(g) 
E)   2AlH3(s)  F) A) and B)
G) A) and C)

Question 3

Which ion is isoelectronic with Ar

Accepted Answer

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

Question 4

Concerning the electron configuration of fluorine, 1s22s22p5 which of the following represents the core electrons only

Accepted Answer

A)   1s2
B)   1s22s2
C)   1s22s22p5
D)   2s22p5
E)   2p5F) A) and B)
G) C) and D)

Question 5

How many valence electrons does S2- have

Accepted Answer

A)   2
B)   4
C)   6
D)   16
E)   8F) All of the above
G) A) and E)

Question 6

The successive ionization energies of a certain element are I1= 577.9 kJ/mol, I2 = 1820 kJ/mol, I3= 2750 kJ/mol, I4 = 11,600 kJ/mol, and I5 = 14,800 kJ/mol. This pattern of ionization energies suggests that the unknown element is

Accepted Answer

A)   K
B)   Al
C)   Cl
D)   Se
E)   KrF) A) and E)
G) A) and C)

Question 7

Which one of the following elements forms a stable 3- anion

Accepted Answer

A)   P
B)   S
C)   Cl
D)   Al
E)   MgF) A) and B)
G) C) and D)

Question 8

An I- ion has a larger radius than an I atom.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is the general electron configuration for the outermost electrons of the elements in Group 5A

Accepted Answer

A)   ns2np6
B)   ns2np5
C)   ns2np4
D)   ns2np3
E)   ns2np1F) A) and C)
G) A) and B)

Question 10

If the radius of atom X is greater than the radius of atom Y, then it is also likely that

Accepted Answer

A)   X has a larger electron affinity than Y does.
B)   X has a larger effective nuclear charge than Y does.
C)   X has greater metallic character than Y does.
D)   X has a larger first ionization energy than Y does.
E)   X is a poorer conductor of electricity than Y when in the solid state.F) A) and B)
G) A) and C)

Question 11

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

Accepted Answer

A)   K
B)   Br
C)   As
D)   Ar
E)   IF) D) and E)
G) A) and E)

Question 12

Which, if any, is the ground-state electron configuration for Ni2+

Accepted Answer

A)   [Ar]3d6 or 1s22s22p63s23p63d6
B)   [Ar]3d7 or 1s22s22p63s23p63d7
C)   [Ar]3d8 or 1s22s22p63s23p63d8
D)   [Ar]3d9 or 1s22s22p63s23p63d9
E)   None of the aboveF) A) and B)
G) A) and E)

Question 13

The electron affinity of fluorine is essentially equal to

Accepted Answer

A)   the negative of the ionization energy F.
B)   the ionization energy F-.
C)   the negative of the ionization energy F-.
D)   the ionization energy Ne.
E)   the negative of the ionization energy Ne.F) A) and D)
G) C) and D)

Question 14

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 C)
G) All of the above

Question 15

Write the products of the following reaction: 2K(s)  + 2H2O(l)   →\rarr→

Accepted Answer

A)   KOH(aq)  + H2(g) 
B)   2KOH(aq)  + H2O(g) 
C)   2KOH(aq)  + H2(g) 
D)   2K(OH) 2(aq) 
E)   None of the above F) D) and E)
G) B) and E)

Question 16

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

Accepted Answer

A)   Se2-
B)   Br-
C)   Rb+
D)   Y3+
E)   Zn2+F) A) and B)
G) B) and D)

Question 17

The following successive ionization energies correspond to an element in the third row of the periodic table: I1 = 786.3 kJ/mol, I2 =1,580 kJ/mol, I3= 3,230 kJ/mol, I4 = 4,360 kJ/mol, I5 = 16,000, and I6 = 20,000 kJ/mol. Based on this pattern of ionization energies, identify the element.

Accepted Answer

A)   Sulfur
B)   Phosphorous
C)   Silicon
D)   Aluminum
E)   None of the aboveF) None of the above
G) B) and E)

Question 18

Which one of the following elements is a transition element

Accepted Answer

A)   antimony
B)   barium
C)   chromium
D)   potassium
E)   seleniumF) A) and B)
G) C) and E)

Question 19

Which one of the following elements is a Lanthanide

Accepted Answer

A)   U
B)   Ce
C)   Os
D)   Bi
E)   CsF) A) and B)
G) A) and E)

Question 20

Which of the following is a basic oxide

Accepted Answer

A)   CO2
B)   CaO
C)   SO2
D)   H2O
E)   NO2F) A) and E)
G) D) and E)

Exam 8: Periodic Relationships Among the Elements

How many valence electrons does S2- have

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What are the products of the following reaction 2Al(s) + 6H+(aq) →\rarr→

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Which, if any, is the ground-state electron configuration for Ni2+

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The electron affinity of fluorine is essentially equal to

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

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Concerning the electron configuration of sulfur, 1s22s22p63s23p4, which of the following represents the core electrons only

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If the radius of atom X is greater than the radius of atom Y, then it is also likely that

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The successive ionization energies of a certain element are I1= 577.9 kJ/mol, I2 = 1820 kJ/mol, I3= 2750 kJ/mol, I4 = 11,600 kJ/mol, and I5 = 14,800 kJ/mol. This pattern of ionization energies suggests that the unknown element is

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Which ion is isoelectronic with Ar

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Write the products of the following reaction: 2K(s) + 2H2O(l) →\rarr→

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Which one of the following elements forms a stable 3- anion

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Which one of the following ions has the largest radius

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Which one of the following elements is a transition element

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Which of the following is a basic oxide

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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 elements is a Lanthanide

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Concerning the electron configuration of fluorine, 1s22s22p5 which of the following represents the core electrons only

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An I- ion has a larger radius than an I atom.

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Which of the following is the general electron configuration for the outermost electrons of the elements in Group 5A

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The following successive ionization energies correspond to an element in the third row of the periodic table: I1 = 786.3 kJ/mol, I2 =1,580 kJ/mol, I3= 3,230 kJ/mol, I4 = 4,360 kJ/mol, I5 = 16,000, and I6 = 20,000 kJ/mol. Based on this pattern of ionization energies, identify the element.

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How many valence electrons does S^2- have

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What are the products of the following reaction 2Al(s) + 6H⁺(aq) $\rarr$

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Which, if any, is the ground-state electron configuration for Ni²⁺

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Concerning the electron configuration of sulfur, 1s²2s²2p⁶3s²3p⁴, which of the following represents the core electrons only

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The successive ionization energies of a certain element are I₁= 577.9 kJ/mol, I₂ = 1820 kJ/mol, I₃= 2750 kJ/mol, I₄ = 11,600 kJ/mol, and I₅ = 14,800 kJ/mol. This pattern of ionization energies suggests that the unknown element is

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Write the products of the following reaction: 2K(s) + 2H₂O(l) $\rarr$

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Concerning the electron configuration of fluorine, 1s²2s²2p⁵ which of the following represents the core electrons only

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