Question 1

Identify the number of valence electrons for Mn.

Accepted Answer

A)   8
B)   7
C)   5
D)   2E) A) and B)
F) A) and C)

Question 2

Place the following in order of decreasing metallic character. P As K

Accepted Answer

A)   P > As > K
B)   As > P > K
C)   K > P > As
D)   As > K > P
E)   K > As > PF) None of the above
G) B) and D)

Question 3

An element that has the outer electron configuration 5s24d5 belongs to which period and group?

Accepted Answer

A)   period 4; group 8
B)   period 5; group 9
C)   period 5; group 7
D)   period 5; group 3
E)   period 5; group 13F) A) and B)
G) B) and C)

Question 4

Which ionization process requires the most energy?

Accepted Answer

A)   S(g)  → S+(g)  + e-
B)   S+(g)  → S2+(g)  + e-
C)   Cl(g)  → Cl+(g)  + e-
D)   Cl+(g)  → Cl2+(g)  + e-E) A) and B)
F) B) and C)

Question 5

Which ionization process requires the most energy?

Accepted Answer

A)   W(g)  → W+(g)  + e-
B)   W+(g)  → W2+(g)  + e-
C)   W2+(g)  → W3+(g)  + e-
D)   W3+(g)  → W4+(g)  + e-E) A) and D)
F) None of the above

Question 6

Use the periodic table to determine the ground-state electron configuration for the following element: Te

Accepted Answer

A)   [Kr]5s24d105p6
B)   [Kr]5s24d105p4
C)   [Xe]5s24d105p4
D)   [Xe]6s25d104f146p4
E)   [Kr]5s24d6F) B) and C)
G) A) and E)

Question 7

Identify the species that has the smallest radius.

Accepted Answer

A)   cation
B)   anion
C)   neutral
D)   water moleculeE) None of the above
F) All of the above

Question 8

Place the following ions in order of decreasing radius. Te2⁻ F⁻ O2⁻

Accepted Answer

A)   F⁻ > O2⁻ > Te2⁻
B)   F⁻ > Te2⁻ > O2⁻
C)   Te2⁻ > O2⁻ > F⁻
D)   Te2⁻ > F⁻ > O2⁻
E)   O2⁻ > F⁻ > Te2⁻F) A) and D)
G) A) and C)

Question 9

What is the general valence-electron ground-state electron configuration for neutral alkaline earth metals?

Accepted Answer

A)   ns1
B)   ns2
C)   1s22s1
D)   1s22s2E) B) and C)
F) A) and C) B

Question 10

How many electrons are in the 3d orbital of V?

Accepted Answer

A)   2
B)   3
C)   4
D)   5
E)   10F) All of the above
G) A) and B)

Question 11

Use the periodic table to determine the ground-state electron configuration for the following element: F

Accepted Answer

A)   [He]2s22p5
B)   [He]2s23p5
C)   [He]3s22p5
D)   [He]2s21d102p5
E)   [He]3s23p5F) B) and E)
G) A) and B)

Question 12

An element that has the valence electron configuration 6s26p6 belongs to which period and group?

Accepted Answer

A)   period 6; group 16
B)   period 6; group 18
C)   period 7; group 16
D)   period 7; group 18
E)   period 7; group 17F) B) and D)
G) A) and E)

Question 13

The f orbital can hold a maximum of ________ electrons.

Accepted Answer

A)   2
B)   6
C)   8
D)   10
E)   14F) B) and D)
G) A) and D)

Question 14

What is the effective nuclear charge experienced by the valence electrons of Ca? (Hint: Use Slater's rule.)

Accepted Answer

A)   2.85
B)   20
C)   17.5
D)   3.00
E)   3.15F) B) and E)
G) A) and B)

Question 15

Place the following in order of increasing metallic character. Rb Cs K Na

Accepted Answer

A)   K 
B)   Na 
C)   Cs 
D)   K 
E)   Na < Rb < Cs < KF) B) and E)
G) C) and E)

Question 16

Use the periodic table to determine the ground-state electron configuration for the following element: Cu

Accepted Answer

A)   [Ar]4s23d9
B)   [Ar]4s13d10
C)   [Ar]4s24d9
D)   [Ar]4s14d10
E)   [Ar]4s24p1F) B) and C)
G) C) and D) B

Question 17

Identify the ground-state electron configuration for Pb.

Accepted Answer

A)   [Xe]6s26p2
B)   [Xe]6s25d106p2
C)   [Xe]6s25f146d106p2
D)   [Xe]6s24f145d106p2
E)   [Xe]6s24f145d106s26p2F) B) and D)
G) B) and C) D

Question 18

What was the predicted formula for the oxide of eka-aluminum (gallium) ?

Accepted Answer

A)   XO2
B)   X2O
C)   XO
D)   X2O3E) All of the above
F) B) and C)

Question 19

Use the periodic table to predict the most stable oxidation state for the following element: Ga

Accepted Answer

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

Question 20

Use the periodic table to determine the ground-state electron configuration for the following element: Fe

Accepted Answer

A)   [Ar]4s24d6
B)   [Ar]4s23d6
C)   [Ar]4s25d6
D)   [Ar]4s25d3
E)   [Ar]4s23d8F) D) and E)
G) C) and E)

Exam 8: Periodic Properties of the Elements

Identify the number of valence electrons for Mn.

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Place the following in order of decreasing metallic character. P As K

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An element that has the outer electron configuration 5s24d5 belongs to which period and group?

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Which ionization process requires the most energy?

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Which ionization process requires the most energy?

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Use the periodic table to determine the ground-state electron configuration for the following element: Te

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Identify the species that has the smallest radius.

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Place the following ions in order of decreasing radius. Te2⁻ F⁻ O2⁻

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What is the general valence-electron ground-state electron configuration for neutral alkaline earth metals?

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How many electrons are in the 3d orbital of V?

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Use the periodic table to determine the ground-state electron configuration for the following element: F

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An element that has the valence electron configuration 6s26p6 belongs to which period and group?

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The f orbital can hold a maximum of ________ electrons.

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What is the effective nuclear charge experienced by the valence electrons of Ca? (Hint: Use Slater's rule.)

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Place the following in order of increasing metallic character. Rb Cs K Na

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Use the periodic table to determine the ground-state electron configuration for the following element: Cu

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Identify the ground-state electron configuration for Pb.

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What was the predicted formula for the oxide of eka-aluminum (gallium) ?

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Use the periodic table to predict the most stable oxidation state for the following element: Ga

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Use the periodic table to determine the ground-state electron configuration for the following element: Fe

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An element that has the outer electron configuration 5s²4d⁵ belongs to which period and group?

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Place the following ions in order of decreasing radius. Te²⁻ F⁻ O²⁻

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B

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An element that has the valence electron configuration 6s²6p⁶ belongs to which period and group?

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B

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D

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