Question 1

Which reaction below represents the first ionization of O?

Accepted Answer

A)   O⁺(g)  + e⁻ → O(g) 
B)   O(g)  + e⁻ → O⁻(g) 
C)   O⁻(g)  → O(g)  + e⁻
D)   O(g)  → O⁺(g)  + e⁻
E)   O⁻(g)  + e⁻ → O2⁻(g)

Question 2

Which element has the highest first electron affinity?

Accepted Answer

A)   Na
B)   Mg
C)   O
D)   Ne

Question 3

How many valence electrons do the alkaline earth metals possess?

Accepted Answer

A)   1
B)   2
C)   7
D)   6
E)   8

Question 4

An element that has the valence electron configuration 6s26p2 belongs to which period and group?

Accepted Answer

A)   period 6; group 16
B)   period 6; group 6
C)   period 6; group 4
D)   period 6; group 14
E)   period 6; group 9

Question 5

An element that has the outer electron configuration 6s25d7 belongs to which period and group?

Accepted Answer

A)   period 7; group 9
B)   period 6; group 7
C)   period 6; group 2
D)   period 6; group 9
E)   period 7; group 7

Question 6

Match the following.
-number of unpaired electrons in Na

Accepted Answer

A)  electrons in the outermost shell
B)  1
C)  2
D)  electrons in completed shells

Question 7

An element that has the valence electron configuration 5s25p3 belongs to which period and group?

Accepted Answer

A)   period 5; group 15
B)   period 5; group 2
C)   period 5; group 3
D)   period 5; group 5
E)   period 4; group 13

Question 8

Describe the reaction of the alkali metals with nonmetals.

Accepted Answer

A)   inert
B)   vigorous
C)   mild reaction
D)   forms water
E)   dissolves

Question 9

Place the following ions in order of increasing radius. Ca2⁺ S2⁻ Cl⁻

Accepted Answer

A)   Ca2⁺ 2⁻
B)   Cl⁻ 2⁺ 2⁻
C)   S2⁻ 2⁺
D)   Ca2⁺ 2⁻ 
E)   Cl⁻ 2⁻ 2⁺

Question 10

The condensed electron configuration of arsenic, element 33, is ________.

Accepted Answer

A)   [Ar] 3d104p3
B)   [Ar]3d104s24p3
C)   [Kr]4s43d10
D)   [Kr] 4s24p3
E)   [Ar] 4s24p3

Question 11

How many unpaired electrons are present in the ground-state Ge atom?

Accepted Answer

A)   0
B)   3
C)   1
D)   2
E)   4

Question 12

Identify the element that has a ground-state electronic configuration of [Kr]5s24d5.

Accepted Answer

A)   Tc
B)   Mn
C)   Nb
D)   Ru

Question 13

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 > P

Question 14

Of the following, which element has the highest first ionization energy?

Accepted Answer

A)   Sr
B)   Br
C)   K
D)   Te

Question 15

Which reaction below represents the electron affinity of Li?

Accepted Answer

A)   Li(g)  + e⁻ → Li⁻(g) 
B)   Li(g)  → Li⁺(g)  + e⁻
C)   Li(g)  + e⁻ → Li⁺(g) 
D)   Li⁺(g)  → Li(g)  + e⁻
E)   Li⁺(g)  + e⁻ → Li(g)

Question 16

Of the following, which atom has the largest atomic radius?

Accepted Answer

A)   Rb
B)   I
C)   Cs
D)   At

Question 17

How many electrons are in the 4d orbital of Zr?

Accepted Answer

A)   2
B)   4
C)   6
D)   8
E)   10

Question 18

Match the following.
-core electrons

Accepted Answer

A)  electrons in the outermost shell
B)  1
C)  2
D)  electrons in completed shells

Question 19

Of the following, which element has the highest first ionization energy?

Accepted Answer

A)   barium
B)   cesium
C)   indium
D)   rubidium

Question 20

Of the following, which element has the highest first ionization energy?

Accepted Answer

A)   Sr
B)   Rb
C)   Na
D)   Ca

Exam 8: Periodic Properties of the Elements

How many valence electrons do the alkaline earth metals possess?

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Of the following, which element has the highest first ionization energy?

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An element that has the outer electron configuration 6s25d7 belongs to which period and group?

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Describe the reaction of the alkali metals with nonmetals.

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

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Place the following ions in order of increasing radius. Ca2⁺ S2⁻ Cl⁻

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An element that has the valence electron configuration 6s26p2 belongs to which period and group?

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Which reaction below represents the first ionization of O?

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The condensed electron configuration of arsenic, element 33, is ________.

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Of the following, which element has the highest first ionization energy?

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How many electrons are in the 4d orbital of Zr?

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Which reaction below represents the electron affinity of Li?

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Of the following, which atom has the largest atomic radius?

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Match the following. -core electrons

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An element that has the valence electron configuration 5s25p3 belongs to which period and group?

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Match the following. -number of unpaired electrons in Na

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Which element has the highest first electron affinity?

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Identify the element that has a ground-state electronic configuration of [Kr]5s24d5.

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How many unpaired electrons are present in the ground-state Ge atom?

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Of the following, which element has the highest first ionization energy?

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An element that has the outer electron configuration 6s²5d⁷ belongs to which period and group?

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Place the following ions in order of increasing radius. Ca²⁺ S²⁻ Cl⁻

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An element that has the valence electron configuration 6s²6p² belongs to which period and group?

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An element that has the valence electron configuration 5s²5p³ belongs to which period and group?

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Identify the element that has a ground-state electronic configuration of [Kr]5s²4d⁵.

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