Question 1

Which of the following elements has the smallest atomic size?

Accepted Answer

A)   Na
B)   Ar
C)   K
D)   Ca
E)   KrF) B) and E)
G) A) and C)

Question 2

The most acidic oxides are formed from elements found in the _________________ region of the periodic table.

Accepted Answer

A)   upper right
B)   upper left
C)   center
D)   lower right
E)   lower leftF) A) and B)
G) A) and C)

Question 3

The electronic structure 1s22s22p63s23p64s23d8 refers to the ground state of

Accepted Answer

A)   Kr.
B)   Ni.
C)   Fe.
D)   Pd.
E)   none of the above.F) C) and D)
G) B) and E)

Question 4

Elements with _______________ first ionization energies and ___________ electron affinities generally form anions.

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 the above is generally correct.F) C) and D)
G) All of the above

Question 5

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 the above statements is generally correct.F) A) and D)
G) All of the above

Question 6

Hund's rule is used to predict the electron configuration of atoms in excited states.

Accepted Answer

A) True 
 B)False

Question 7

Select the most basic compound from the following:

Accepted Answer

A)   Bi2O3
B)   SiO2
C)   Cs2O
D)   Na2O
E)   H2OF) A) and B)
G) B) and C)

Question 8

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

Accepted Answer

A)   Rb
B)   Mg
C)   I
D)   As
E)   FF) None of the above
G) C) and D)

Question 9

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 10

An atom of element number 33 (As)  is in its ground electronic state. Which one of the following sets quantum numbers could not apply to any of its electrons?

Accepted Answer

A)   n = 2 l = 1 ml = -1 ms = + l = -1 ms = +   
B)   n = 3 l = 0 ml = 0 ms = -   
C)   n = 3 l = 2 ml = -2 ms = -   
D)   n = 4 l = 0 ml = 0 ms = -   
E)   n = 4 l = 2 ml = 1 ms = +  " class="answers-bank-image d-inline" rel="preload" >
B)   n = 3 l = 0 ml = 0 ms = - l = -1 ms = +   
B)   n = 3 l = 0 ml = 0 ms = -   
C)   n = 3 l = 2 ml = -2 ms = -   
D)   n = 4 l = 0 ml = 0 ms = -   
E)   n = 4 l = 2 ml = 1 ms = +  " class="answers-bank-image d-inline" rel="preload" >
C)   n = 3 l = 2 ml = -2 ms = - l = -1 ms = +   
B)   n = 3 l = 0 ml = 0 ms = -   
C)   n = 3 l = 2 ml = -2 ms = -   
D)   n = 4 l = 0 ml = 0 ms = -   
E)   n = 4 l = 2 ml = 1 ms = +  " class="answers-bank-image d-inline" rel="preload" >
D)   n = 4 l = 0 ml = 0 ms = - l = -1 ms = +   
B)   n = 3 l = 0 ml = 0 ms = -   
C)   n = 3 l = 2 ml = -2 ms = -   
D)   n = 4 l = 0 ml = 0 ms = -   
E)   n = 4 l = 2 ml = 1 ms = +  " class="answers-bank-image d-inline" rel="preload" >
E)   n = 4 l = 2 ml = 1 ms = + l = -1 ms = +   
B)   n = 3 l = 0 ml = 0 ms = -   
C)   n = 3 l = 2 ml = -2 ms = -   
D)   n = 4 l = 0 ml = 0 ms = -   
E)   n = 4 l = 2 ml = 1 ms = +  " class="answers-bank-image d-inline" rel="preload" >F) A) and E)
G) C) and D)

Question 11

Which of the following atoms will be diamagnetic?

Accepted Answer

A)   Cr
B)   Ru
C)   Fe
D)   Pt
E)   CdF) A) and B)
G) A) and C)

Question 12

Select the element with the least metallic character.

Accepted Answer

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

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

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

Accepted Answer

A)   4, 1, -1, l, ms)  for the highest energy electron in the ground state of potassium, K. 
A)   4, 1, -1,   
B)   4, 1, 0,   
C)   4, 0, 1,   
D)   4, 0, 0,   
E)   4, 1, 1,  " class="answers-bank-image d-inline" rel="preload" >
B)   4, 1, 0, l, ms)  for the highest energy electron in the ground state of potassium, K. 
A)   4, 1, -1,   
B)   4, 1, 0,   
C)   4, 0, 1,   
D)   4, 0, 0,   
E)   4, 1, 1,  " class="answers-bank-image d-inline" rel="preload" >
C)   4, 0, 1, l, ms)  for the highest energy electron in the ground state of potassium, K. 
A)   4, 1, -1,   
B)   4, 1, 0,   
C)   4, 0, 1,   
D)   4, 0, 0,   
E)   4, 1, 1,  " class="answers-bank-image d-inline" rel="preload" >
D)   4, 0, 0, l, ms)  for the highest energy electron in the ground state of potassium, K. 
A)   4, 1, -1,   
B)   4, 1, 0,   
C)   4, 0, 1,   
D)   4, 0, 0,   
E)   4, 1, 1,  " class="answers-bank-image d-inline" rel="preload" >
E)   4, 1, 1, l, ms)  for the highest energy electron in the ground state of potassium, K. 
A)   4, 1, -1,   
B)   4, 1, 0,   
C)   4, 0, 1,   
D)   4, 0, 0,   
E)   4, 1, 1,  " class="answers-bank-image d-inline" rel="preload" >F) B) and E)
G) A) and B)

Question 15

State Hund's rule, and show how it applies to the ground state of phosphorus atoms.

Accepted Answer

Electrons occupy orbitals within the sam...

Question 16

How many valence electrons are there in an atom with the electron configuration [noble gas]ns2(n - 1) d8?

Accepted Answer

A)   2
B)   6
C)   8
D)   10
E)   none of the aboveF) A) and B)
G) A) and C)

Question 17

Which one of the following equations correctly represents the process involved in the electron affinity of X?

Accepted Answer

A)   X(g)   X+(g)  + e-
B)   X+(g)   X+(aq) 
C)   X+(g)  + e-  X(g) 
D)   X(g)  + e-  X-(g) 
E)   X+(g)  + Y-(g)   XY(s) F) C) and E)
G) A) and E)

Question 18

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) C) and E)
G) D) and E)

Question 19

Consider the set of isoelectronic atoms and ions A2-, B-, C, D+, and E2+. Which arrangement of relative radii is correct?

Accepted Answer

A)   A2- > B- > C > D+ > E2+
B)   E2+ > D+ > C > B- > A2-
C)   A2- > B- > C + 2+
D)   A2- -  D+ > E2+
E)   None of the above is correct.F) A) and B)
G) All of the above

Question 20

First ionization energies of neutral atoms may be positive or negative.

Accepted Answer

A) True 
 B)False

Exam 8: Electron Configuration and Chemical Periodicity

Elements with _______________ first ionization energies and ___________ electron affinities generally form anions.

Correct AnswerverifiedShow Answer

Hund's rule is used to predict the electron configuration of atoms in excited states.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

State Hund's rule, and show how it applies to the ground state of phosphorus atoms.

Correct AnswerverifiedElectrons occupy orbitals within the sam...View AnswerShow Answer

The electronic structure 1s22s22p63s23p64s23d8 refers to the ground state of

Correct AnswerverifiedShow Answer

Select the element with the least metallic character.

Correct AnswerverifiedShow Answer

Which one of the following equations correctly represents the process involved in the electron affinity of X?

Correct AnswerverifiedShow Answer

First ionization energies of neutral atoms may be positive or negative.

Correct AnswerverifiedShow Answer

An atom of element number 33 (As) is in its ground electronic state. Which one of the following sets quantum numbers could not apply to any of its electrons?

Correct AnswerverifiedShow Answer

Which of the following elements has the smallest atomic size?

Correct AnswerverifiedShow Answer

Consider the set of isoelectronic atoms and ions A2-, B-, C, D+, and E2+. Which arrangement of relative radii is correct?

Correct AnswerverifiedShow Answer

Select the most basic compound from the following:

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

How many valence electrons are there in an atom with the electron configuration [noble gas]ns2(n - 1) d8?

Correct AnswerverifiedShow Answer

Which of the following atoms will be diamagnetic?

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

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

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 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

The most acidic oxides are formed from elements found in the _________________ region of the periodic table.

Correct AnswerverifiedShow Answer

Elements with _____ first ionization energies and _ electron affinities generally form anions.

Correct Answer
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Electrons occupy orbitals within the sam...
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The electronic structure 1s²2s²2p⁶3s²3p⁶4s²3d⁸ refers to the ground state of

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Consider the set of isoelectronic atoms and ions A^2-, B^-, C, D⁺, and E²⁺. Which arrangement of relative radii is correct?

Correct Answer
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How many valence electrons are there in an atom with the electron configuration [noble gas]ns²(n - 1) d⁸?

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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.

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

Correct Answer
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Electron affinity is the energ...
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Correct Answer
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