Question 1

Which of the following elements is paramagnetic?

Accepted Answer

A)  Kr
B)  Zn
C)  Sr
D)  V
E)  ArF) B) and E)
G) A) and B)

Question 2

Electron affinities of neutral atoms may be positive or negative.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following ions will be most likely to form when selenium ionizes?

Accepted Answer

A)  Se6+
B)  Se4+
C)  Se2+
D)  Se2-
E)  Se4-F) A) and E)
G) C) and D)

Question 4

Elements with ________________ first ionization energies and ___________ electron affinities generally form cations.

Accepted Answer

A)  low,very negative
B)  high,positive or slightly negative
C)  low,positive or slightly negative
D)  high,very negative
E)  None of these is generally correct.F) B) and C)
G) B) and D)

Question 5

Select the correct electron configuration for sulfur (Z = 16) .

Accepted Answer

A)  1s21p62s22p6
B)  1s22s22p83s23p4
C)  1s22s22p83s23p2
D)  1s22s22p63s23p4
E)  1s22s22p63s23d4F) C) and E)
G) A) and E)

Question 6

In Mendeleev's version of the periodic table,the elements were arranged in order of increasing atomic number.

Accepted Answer

A) True 
 B)False

Question 7

Select the element with the least metallic character.

Accepted Answer

A)  Sn
B)  Sr
C)  Tl
D)  Ge
E)  GaF) C) and D)
G) A) and C)

Question 8

Which of the following elements has the largest atomic size?

Accepted Answer

A)  S
B)  Ca
C)  Ba
D)  Po
E)  RnF) A) and E)
G) B) and D)

Question 9

Select the most acidic compound from the following.

Accepted Answer

A)  SO2
B)  Al2O3
C)  CaO
D)  PbO
E)  H2OF) B) and E)
G) A) and E)

Question 10

Define what is meant by ionization energy,and write a balanced chemical equation to represent the relevant process for element X.

Accepted Answer

Ionization energy is the minim...

Question 11

Energy states of atoms containing more than one electron arise from nucleus-electron and electron-electron interactions.Which of the following statements correctly describes these effects?

Accepted Answer

A)  Larger nuclear charge lowers energy,more electrons in an orbital lowers energy.
B)  Larger nuclear charge lowers energy,more electrons in an orbital increases energy.
C)  Smaller nuclear charge lowers energy,more electrons in an orbital lowers energy.
D)  Smaller nuclear charge lowers energy,more electrons in an orbital increases energy.
E)  None of these statements is generally correct.F) B) and E)
G) C) and E)

Question 12

The maximum number of electrons in an atom with the same value of n is 2n2.

Accepted Answer

A) True 
 B)False

Question 13

Define what is meant by electron affinity,and write a balanced chemical equation to represent the relevant process for element Y.

Accepted Answer

Electron affinity is the energ...

Question 14

In moving down a group in the periodic table,the oxides of the elements become more acidic in nature.

Accepted Answer

A) True 
 B)False

Question 15

Identify the element of Period 2 which has the following successive ionization energies,in kJ/mol.

Accepted Answer

A)  Li
B)  B
C)  O
D)  Ne
E)  None of these choices is correct.F) C) and D)
G) B) and E)

Question 16

Briefly describe how the atomic radii and ionization energies of group 1A(1)elements compare with those of group 8A(18).Also,explain why the values of these properties are so different between these two groups.

Accepted Answer

Group 1A (1)atoms are much lar...

Question 17

Select the correct set of quantum numbers (n,l,ml,ms) for the highest energy electron in the ground state of tin,Sn.

Accepted Answer

A)  5,2,-1,l,ms) for the highest energy electron in the ground state of tin,Sn. 
A)  5,2,-1,   
B)  5,2,0,   
C)  5,1,2,   
D)  5,1,0,   
E)  5,2,1,  " class="answers-bank-image d-inline" rel="preload" >
B)  5,2,0,l,ms) for the highest energy electron in the ground state of tin,Sn. 
A)  5,2,-1,   
B)  5,2,0,   
C)  5,1,2,   
D)  5,1,0,   
E)  5,2,1,  " class="answers-bank-image d-inline" rel="preload" >
C)  5,1,2,l,ms) for the highest energy electron in the ground state of tin,Sn. 
A)  5,2,-1,   
B)  5,2,0,   
C)  5,1,2,   
D)  5,1,0,   
E)  5,2,1,  " class="answers-bank-image d-inline" rel="preload" >
D)  5,1,0,l,ms) for the highest energy electron in the ground state of tin,Sn. 
A)  5,2,-1,   
B)  5,2,0,   
C)  5,1,2,   
D)  5,1,0,   
E)  5,2,1,  " class="answers-bank-image d-inline" rel="preload" >
E)  5,2,1,l,ms) for the highest energy electron in the ground state of tin,Sn. 
A)  5,2,-1,   
B)  5,2,0,   
C)  5,1,2,   
D)  5,1,0,   
E)  5,2,1,  " class="answers-bank-image d-inline" rel="preload" >F) None of the above
G) B) and D)

Question 18

In forming ions of the first series of transition metals,the 4s electrons are lost before the 3d electrons.

Accepted Answer

A) True 
 B)False

Question 19

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

Accepted Answer

A)  Na
B)  Cl
C)  Ca
D)  Te
E)  BrF) A) and B)
G) A) and E)

Question 20

Select the correct set of quantum numbers (n,l,ml,ms) for the first electron removed in the formation of a cation for strontium,Sr.

Accepted Answer

A)  5,1 ,0,l,ms) for the first electron removed in the formation of a cation for strontium,Sr. 
A)  5,1 ,0,   
B)  5,1,0,   
C)  5,0,1,   
D)  5,1,1,   
E)  5,0,0,  " class="answers-bank-image d-inline" rel="preload" >
B)  5,1,0,l,ms) for the first electron removed in the formation of a cation for strontium,Sr. 
A)  5,1 ,0,   
B)  5,1,0,   
C)  5,0,1,   
D)  5,1,1,   
E)  5,0,0,  " class="answers-bank-image d-inline" rel="preload" >
C)  5,0,1,l,ms) for the first electron removed in the formation of a cation for strontium,Sr. 
A)  5,1 ,0,   
B)  5,1,0,   
C)  5,0,1,   
D)  5,1,1,   
E)  5,0,0,  " class="answers-bank-image d-inline" rel="preload" >
D)  5,1,1,l,ms) for the first electron removed in the formation of a cation for strontium,Sr. 
A)  5,1 ,0,   
B)  5,1,0,   
C)  5,0,1,   
D)  5,1,1,   
E)  5,0,0,  " class="answers-bank-image d-inline" rel="preload" >
E)  5,0,0,l,ms) for the first electron removed in the formation of a cation for strontium,Sr. 
A)  5,1 ,0,   
B)  5,1,0,   
C)  5,0,1,   
D)  5,1,1,   
E)  5,0,0,  " class="answers-bank-image d-inline" rel="preload" >F) All of the above
G) A) and B)

Exam 8: Electron Configuration and Chemical Periodicity

Select the correct set of quantum numbers (n,l,ml,ms) for the highest energy electron in the ground state of tin,Sn.

Correct AnswerverifiedShow Answer

Elements with ________________ first ionization energies and ___________ electron affinities generally form cations.

Correct AnswerverifiedShow Answer

Define what is meant by electron affinity,and write a balanced chemical equation to represent the relevant process for element Y.

Correct AnswerverifiedElectron affinity is the energ...View AnswerShow Answer

Select the correct electron configuration for sulfur (Z = 16) .

Correct AnswerverifiedShow Answer

Select the correct set of quantum numbers (n,l,ml,ms) for the first electron removed in the formation of a cation for strontium,Sr.

Correct AnswerverifiedShow Answer

Energy states of atoms containing more than one electron arise from nucleus-electron and electron-electron interactions.Which of the following statements correctly describes these effects?

Correct AnswerverifiedShow Answer

In Mendeleev's version of the periodic table,the elements were arranged in order of increasing atomic number.

Correct AnswerverifiedShow Answer

Define what is meant by ionization energy,and write a balanced chemical equation to represent the relevant process for element X.

Correct AnswerverifiedIonization energy is the minim...View AnswerShow Answer

Select the element with the least metallic character.

Correct AnswerverifiedShow Answer

Which of the following elements has the largest atomic size?

Correct AnswerverifiedShow Answer

Which of the following elements is paramagnetic?

Correct AnswerverifiedShow Answer

Electron affinities of neutral atoms may be positive or negative.

Correct AnswerverifiedShow Answer

The maximum number of electrons in an atom with the same value of n is 2n2.

Correct AnswerverifiedShow Answer

In moving down a group in the periodic table,the oxides of the elements become more acidic in nature.

Correct AnswerverifiedShow Answer

Briefly describe how the atomic radii and ionization energies of group 1A(1)elements compare with those of group 8A(18).Also,explain why the values of these properties are so different between these two groups.

Correct AnswerverifiedGroup 1A (1)atoms are much lar...View AnswerShow Answer

In forming ions of the first series of transition metals,the 4s electrons are lost before the 3d electrons.

Correct AnswerverifiedShow Answer

Select the most acidic compound from the following.

Correct AnswerverifiedShow Answer

Identify the element of Period 2 which has the following successive ionization energies,in kJ/mol.

Correct AnswerverifiedShow Answer

Which of the following ions will be most likely to form when selenium ionizes?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Select the correct set of quantum numbers (n,l,m_l,m_s) for the highest energy electron in the ground state of tin,Sn.

Correct Answer
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Elements with ______ first ionization energies and _ electron affinities generally form cations.

Correct Answer
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Electron affinity is the energ...
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Select the correct set of quantum numbers (n,l,m_l,m_s) for the first electron removed in the formation of a cation for strontium,Sr.

Correct Answer
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Correct Answer
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Ionization energy is the minim...
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Correct Answer
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Correct Answer
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Correct Answer
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The maximum number of electrons in an atom with the same value of n is 2n².

Correct Answer
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Correct Answer
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Group 1A (1)atoms are much lar...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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