Question 1

Choose the species from which one electron could most easily be removed.

Accepted Answer

A)  Cl
B)  K+ 
C)  K
D)  Ca+ 
E)  ArF) A) and E)
G) A) and D)

Question 2

Which statement best describes relationships in a modern periodic table?

Accepted Answer

A)  Each transition element is placed in the column of the main group element that it most closely resembles.
B)  The fourteen elements in the "lanthanide" series form a new independent period.
C)  Metalloids usually are the cations in ionic compounds.
D)  Nonmetallic properties tend to predominate for elements at the far right portion of the table.
E)  Elements are always arranged in order of increasing atomic weights.F) A) and E)
G) All of the above

Question 3

The inner transition elements include the actinides and the lanthanides.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following species is diamagnetic?

Accepted Answer

A)  F-
B)  C
C)  Al
D)  S-
E)  NaF) A) and B)
G) A) and C)

Question 5

Which of the following elements is likely to have the largest second ionization energy?

Accepted Answer

A)  Na
B)  Mg
C)  Al
D)  SiE) A) and C)
F) A) and B)

Question 6

Which comparison of ionization energies is correct?

Accepted Answer

A)  Cs > Na
B)  Na > Mg
C)  Ca > Mg
D)  Ca+ > Ca
E)  Ar > HeF) All of the above
G) D) and E)

Question 7

List in order of more negative electron affinity: F,Br,Sb,Rb,Se.
(more positive → more negative)

Accepted Answer

A)  Br 
B)  Se 
C)  Sb 
D)  Br 
E)  Rb < Sb < Se < Br < FF) None of the above
G) A) and B)

Question 8

Which of the following has the largest number of unpaired electrons: S,Cr2+ ,N,K,Ne?

Accepted Answer

A)  S
B)  Cr2+ 
C)  N
D)  K
E)  NeF) A) and E)
G) A) and B)

Question 9

Which atom in each group (I and II) has the smallest atomic radius?
(I) Ba,Hf,At 
(II) As,Sb,Bi

Accepted Answer

A)  Ba;As
B)  Ba;Bi
C)  At;As
D)  At;BiE) A) and D)
F) A) and B)

Question 10

Paramagnetic is not the same as magnetic.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following has the largest atomic radius?

Accepted Answer

A)  Rb
B)  Br
C)  Mo
D)  IE) B) and C)
F) A) and D)

Question 12

What is the general relationship between electron affinity and atomic radii for neutral atoms in their ground electronic states?

Accepted Answer

A)  Electron affinity becomes more negative as radii increases.
B)  Electron affinity becomes more negative as radii decreases.
C)  Electron affinity becomes positive as radii decreases.
D)  Electron affinity becomes positive as radii increases.
E)  The two quantities are unrelated.F) C) and D)
G) A) and E)

Question 13

What is the relationship between ionization energy and atomic radii?

Accepted Answer

A)  Energy increases as radii increase.
B)  Energy is negative for all large radii.
C)  Energy decreases as radii decrease.
D)  Energy decreases as radii increase
E)  Energy increases as radii decreaseF) B) and D)
G) A) and B)

Question 14

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

Accepted Answer

A)  Al
B)  Cl
C)  Na
D)  PE) B) and C)
F) A) and D)

Question 15

Which of the following has the most unpaired electrons: Na,Mn2+ ,S,N,Ar?

Accepted Answer

A)  Na
B)  Mn2+ 
C)  S
D)  N
E)  ArF) D) and E)
G) B) and D)

Question 16

The first ionization potential for S is lower than the first ionization potential for P because:

Accepted Answer

A)  Hund's rule is violated
B)  P has a p3 configuration
C)  ionization potentials decrease across a representative period
D)  P is to the right of S on the periodic table
E)  P is below S on the periodic tableF) C) and D)
G) A) and E)

Question 17

How much energy,in joules,must be absorbed to convert all the atoms present in 1.00 mg of gaseous Na into Na+? The first ionization energy of Na is 495.8 kJ/mol.

Accepted Answer

A)  21.6 J
B)  0.0464 J
C)  46.4 J
D)  0.0216 J
E)  1.14 × 104 JF) A) and E)
G) A) and C)

Question 18

List in order of increasing ionization energy: Na,K,F,Mg,Ne.

Accepted Answer

A)  Na 
B)  K 
C)  Ne 
D)  F 
E)  Ne < Na < Mg < F < KF) A) and E)
G) C) and D)

Question 19

Which of the following has the highest first ionization potential: K,Ge,Kr,Ca,Br?

Accepted Answer

A)  K
B)  Ge
C)  Kr
D)  Ca
E)  BrF) B) and E)
G) A) and E)

Question 20

Which series of elements shows the smallest difference in atomic radii?

Accepted Answer

A)  Li......F
B)  Be......Ra
C)  He......Xe
D)  C......Pb
E)  Sc......ZnF) A) and E)
G) A) and D)

Exam 9: The Periodic Table and Some Atomic Properties

Which statement best describes relationships in a modern periodic table?

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What is the relationship between ionization energy and atomic radii?

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Which atom in each group (I and II) has the smallest atomic radius? (I) Ba,Hf,At (II) As,Sb,Bi

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What is the general relationship between electron affinity and atomic radii for neutral atoms in their ground electronic states?

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Which of the following has the most unpaired electrons: Na,Mn2+ ,S,N,Ar?

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Which series of elements shows the smallest difference in atomic radii?

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Which of the following has the largest atomic radius?

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The inner transition elements include the actinides and the lanthanides.

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How much energy,in joules,must be absorbed to convert all the atoms present in 1.00 mg of gaseous Na into Na+? The first ionization energy of Na is 495.8 kJ/mol.

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The first ionization potential for S is lower than the first ionization potential for P because:

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Which of the following has the largest number of unpaired electrons: S,Cr2+ ,N,K,Ne?

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Which of the following elements is likely to have the largest second ionization energy?

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Which comparison of ionization energies is correct?

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

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List in order of increasing ionization energy: Na,K,F,Mg,Ne.

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Choose the species from which one electron could most easily be removed.

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Which of the following has the highest first ionization potential: K,Ge,Kr,Ca,Br?

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Which of the following species is diamagnetic?

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Paramagnetic is not the same as magnetic.

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List in order of more negative electron affinity: F,Br,Sb,Rb,Se. (more positive → more negative)

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Which of the following has the most unpaired electrons: Na,Mn²⁺,S,N,Ar?

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How much energy,in joules,must be absorbed to convert all the atoms present in 1.00 mg of gaseous Na into Na⁺? The first ionization energy of Na is 495.8 kJ/mol.

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Which of the following has the largest number of unpaired electrons: S,Cr²⁺,N,K,Ne?

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