Question 1

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) A) and E)
G) None of the above

Question 2

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

Accepted Answer

A)  X(g)   →	o→  X+(g) + e-
B)  X+(g)   →	o→  X+(aq) 
C)  X+(g) + e-  →	o→  X(g) 
D)  X(g) + e-   →	o→  X-(g) 
E)  X+(g) + Y-(g)   →	o→  XY(s)  F) All of the above
G) A) and B)

Question 3

Which of the following electron configurations represents the ground state for an element?

Accepted Answer

A)  [Ne]3s13p1
B)  [He]2s12p3
C)  [Ne]3s23p23d1
D)  [Ne]3s23p33d1
E)  [Ne]3s23p3F) A) and B)
G) C) and E)

Question 4

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) D) and E)
G) A) and B)

Question 5

The ____________________ quantum numbers are associated with the energy of an electron in a many-electron atom.

Accepted Answer

A)  n and l
B)  n and ml
C)  l and ml
D)  n and ms
E)  n,l and mlF) A) and B)
G) D) and E)

Question 6

According to the exclusion principle,two is the maximum number of electrons in an atom which can share the same four quantum numbers.

Accepted Answer

A) True 
 B)False

Question 7

Select the correct electron configuration for Cu (Z = 29) .

Accepted Answer

A)  [Ar]4s23d9
B)  [Ar]4s13d10
C)  [Ar]4s24p63d3
D)  [Ar]4s24d9
E)  [Ar]5s24d9F) C) and D)
G) A) and B)

Question 8

In a single atom,what is the maximum number of electrons which can have quantum number n = 4?

Accepted Answer

A)  16
B)  18
C)  32
D)  36
E)  None of these choices is correct.F) B) and C)
G) A) and E)

Question 9

The difference in energies between the 1s and 2s orbitals is due to the penetration effect.

Accepted Answer

A) True 
 B)False

Question 10

Which one of the following statements about atomic structure and quantum numbers is incorrect?

Accepted Answer

A)  In a given atom,the maximum number of electrons having principal quantum number n = 3,is 18.
B)  The number of orbitals in a given f subshell is 7.
C)  For n = 4,the largest possible value of l is 3.
D)  For n = 4,the largest possible value of ml is 2.
E)  The following set of quantum numbers for a single orbital is not allowed: n = 3,l = 1,ml = -2.F) A) and E)
G) A) and D)

Question 11

Which one of the following statements about orbital energies is incorrect?

Accepted Answer

A)  In the hydrogen atom,the energy of an orbital depends only on the value of the quantum number n.
B)  In many-electron atoms the energy of an orbital depends on both n and l.
C)  Inner electrons shield outer electrons more effectively than do electrons in the same orbital.
D)  The splitting of sublevels in many-electron atoms is explained in terms of the penetration effect.
E)  The energy of a given orbital increases as the nuclear charge Z increases.F) B) and E)
G) D) and E)

Question 12

Elements in which the outermost electron has the same principal quantum number n,show similar chemical properties.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following elements has the greatest atomic radius?

Accepted Answer

A)  Li
B)  Ne
C)  Rb
D)  Sr
E)  XeF) C) and D)
G) B) and D)

Question 14

The electronic structure 1s22s22p63s23p64s23d8 refers to the ground state of

Accepted Answer

A)  Kr
B)  Ni
C)  Fe
D)  Pd
E)  None of these choices is correct.F) A) and E)
G) A) and D)

Question 15

Select the correct electron configuration for Te (Z = 52) .

Accepted Answer

A)  [Kr]5s25p64d8
B)  [Kr]5s25d105p4
C)  [Kr]5s24d105p6
D)  [Kr]5s24f14
E)  [Kr]5s24d105p4F) A) and B)
G) A) and D)

Question 16

Which one of the following equations correctly represents the process relating to the ionization energy of X?

Accepted Answer

A)  X(s)   →	o→  X+(g) + e-
B)  X2(g)   →	o→  X+(g) + X-(g) 
C)  X(g) + e-   →	o→  X-(g) 
D)  X-(g)   →	o→  X(g) + e-
E)  X(g)   →	o→  X+(g) + e- F) C) and D)
G) A) and C)

Question 17

Select the element with the most negative electron affinity (i.e. ,accepts an electron most readily) .

Accepted Answer

A)  H
B)  Li
C)  C
D)  F
E)  NeF) B) and C)
G) A) and C)

Question 18

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 these is generally correct.F) A) and B)
G) A) and C)

Question 19

Which of the following elements has the smallest atomic radius?

Accepted Answer

A)  Li
B)  Ne
C)  Rb
D)  Sr
E)  XeF) C) and D)
G) A) and B)

Question 20

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

Accepted Answer

A)  a
B)  b
C)  c
D)  d
E)  eF) B) and E)
G) A) and B)

Exam 8: Electron Configuration and Chemical Periodicity

Which of the following electron configurations represents the ground state for an element?

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Which of the following elements has the smallest atomic radius?

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Which of the following elements has the greatest atomic radius?

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The electronic structure 1s22s22p63s23p64s23d8 refers to the ground state of

Correct AnswerverifiedShow Answer

According to the exclusion principle,two is the maximum number of electrons in an atom which can share the same four quantum numbers.

Correct AnswerverifiedShow Answer

Select the correct electron configuration for Te (Z = 52) .

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

Select the element with the most negative electron affinity (i.e. ,accepts an electron most readily) .

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Select the correct electron configuration for Cu (Z = 29) .

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Which one of the following statements about orbital energies is incorrect?

Correct AnswerverifiedShow Answer

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

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The difference in energies between the 1s and 2s orbitals is due to the penetration effect.

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Which one of the following equations correctly represents the process relating to the ionization energy of X?

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

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

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In a single atom,what is the maximum number of electrons which can have quantum number n = 4?

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Elements in which the outermost electron has the same principal quantum number n,show similar chemical properties.

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The ____________________ quantum numbers are associated with the energy of an electron in a many-electron atom.

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Which one of the following statements about atomic structure and quantum numbers is incorrect?

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The electronic structure 1s²2s²2p⁶3s²3p⁶4s²3d⁸ refers to the ground state of

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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.

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

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