Question 1

Which, if any, is the ground-state electron configuration for I-

Accepted Answer

A)  1s22s22p63s23p64s23d104p65s24d105p5 
B)  [Xe] or 1s22s22p63s23p64s23d104p65s24d105p6 
C)  [Xe] or 1s22s22p63s23p64s23d104p65s25p6 
D)  [Xe] or 1s22s22p63s23p64s23d104p65s24f105p6 
E)  None of the above 
A)  1s22s22p63s23p64s23d104p65s24d105p5 
B)  [Xe] or 1s22s22p63s23p64s23d104p65s24d105p6 
C)  [Xe] or 1s22s22p63s23p64s23d104p65s25p6 
D)  [Xe] or 1s22s22p63s23p64s23d104p65s24f105p6 
E)  None of the above

Question 2

Which of the elements listed below has the greatest atomic radius

Accepted Answer

A)  B 
B)  Al 
C)  S 
D)  P 
E)  Si 
A)  B 
B)  Al 
C)  S 
D)  P 
E)  Si

Question 3

Which of the following atoms has the greatest electron affinity (largest positive value)

Accepted Answer

A)  S 
B)  P 
C)  Ga 
D)  Li 
E)  Br 
A)  S 
B)  P 
C)  Ga 
D)  Li 
E)  Br

Question 4

Which of the following elements behaves chemically similarly to oxygen

Accepted Answer

A)  magnesium 
B)  sodium 
C)  sulfur 
D)  chlorine 
E)  iron 
A)  magnesium 
B)  sodium 
C)  sulfur 
D)  chlorine 
E)  iron

Question 5

Concerning the electron configuration of F, 1s22s22p5, which, if any, is the configuration for the valence shell electrons only

Accepted Answer

A)  1s22s22p5 
B)  2p5 
C)  1s2 
D)  2s22p5 
E)  None of the above 
A)  1s22s22p5 
B)  2p5 
C)  1s2 
D)  2s22p5 
E)  None of the above

Question 6

Which of the following is the general electron configuration for the outermost electrons of the noble gases

Accepted Answer

A)  ns2np6 
B)  ns2np5 
C)  ns2np4 
D)  ns2np3 
E)  ns2 
A)  ns2np6 
B)  ns2np5 
C)  ns2np4 
D)  ns2np3 
E)  ns2

Question 7

How many core electrons does a silicon atom have

Accepted Answer

A)  14 
B)  10 
C)  4 
D)  8 
E)  2 
A)  14 
B)  10 
C)  4 
D)  8 
E)  2

Question 8

For silicon atoms, which ionization energy will show an exceptionally large increase over the preceding ionization energy

Accepted Answer

A)  2nd 
B)  3rd 
C)  4th 
D)  5th 
E)  6th 
A)  2nd 
B)  3rd 
C)  4th 
D)  5th 
E)  6th

Question 9

Which of the following ground-state ions has the largest number of unpaired electrons

Accepted Answer

A)  Cr2+ 
B)  Mn2+ 
C)  Ni2+ 
D)  Cu+ 
E)  Co2+ 
A)  Cr2+ 
B)  Mn2+ 
C)  Ni2+ 
D)  Cu+ 
E)  Co2+

Question 10

Which of the following is the general electron configuration for the outermost electrons of the halogens

Accepted Answer

A)  ns2np6 
B)  ns2np5 
C)  ns2np6(n -1)d7 
D)  ns1 
E)  ns2np7 
A)  ns2np6 
B)  ns2np5 
C)  ns2np6(n -1)d7 
D)  ns1 
E)  ns2np7

Question 11

How many valence electrons does P3- have

Accepted Answer

A)  3 
B)  8 
C)  15 
D)  1 
E)  18 
A)  3 
B)  8 
C)  15 
D)  1 
E)  18

Question 12

How many 3d electrons does the manganese(II) ion, Mn2+, have

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  6 
E)  7 
A)  3 
B)  4 
C)  5 
D)  6 
E)  7

Question 13

Which of the following reactants can be combined to produce hydrogen gas as a product

Accepted Answer

A)  N2O5(s) + H2O(l) $\rarr$ 
B)  H2(g) + Cl2(g) $\rarr$ 
C)  2 F2(g) + 2H2O(l) $\rarr$ 
D)  Mg(s) + 2H+(aq) $\rarr$ 
E)  2H2(g) + O2(g) $\rarr$ 
A)  N2O5(s) + H2O(l) $\rarr$ 
B)  H2(g) + Cl2(g) $\rarr$ 
C)  2 F2(g) + 2H2O(l) $\rarr$ 
D)  Mg(s) + 2H+(aq) $\rarr$ 
E)  2H2(g) + O2(g) $\rarr$

Question 14

Which of the following elements has the smallest first ionization energy

Accepted Answer

A)  Cl 
B)  Na 
C)  Be 
D)  K 
E)  As 
A)  Cl 
B)  Na 
C)  Be 
D)  K 
E)  As

Question 15

Consider the following reaction 2A + 3F2 $\rarr$2AF3. What is the formula for the reaction product if we substitute sulfur for fluorine

Accepted Answer

A)  A2S3 
B)  A3S2 
C)  AS3 
D)  A3S 
E)  AS 
A)  A2S3 
B)  A3S2 
C)  AS3 
D)  A3S 
E)  AS

Question 16

The second ionization energy of Mg is ________ than its first ionization energy, and is __________ than the second ionization energy of Na.

Accepted Answer

A)  higher, higher 
B)  lower, higher 
C)  higher, lower 
D)  lower, lower 
A)  higher, higher 
B)  lower, higher 
C)  higher, lower 
D)  lower, lower

Question 17

Which element will display an unusually large jump in ionization energy values between I3 and I4, its third and fourth ionization energies

Accepted Answer

A)  Na 
B)  Mg 
C)  Al 
D)  Si 
E)  P 
A)  Na 
B)  Mg 
C)  Al 
D)  Si 
E)  P

Question 18

Which of the following elements is found as a monatomic species in its most stable form

Accepted Answer

A)  nitrogen 
B)  neon 
C)  sulfur 
D)  chlorine 
E)  fluorine 
A)  nitrogen 
B)  neon 
C)  sulfur 
D)  chlorine 
E)  fluorine

Question 19

Which one of the following pairs are isoelectronic

Accepted Answer

A)  Mn2+ and Ar 
B)  Zn2+ and Cu2+ 
C)  Na+ and K+ 
D)  Cl- and S 
E)  K+ and Cl- 
A)  Mn2+ and Ar 
B)  Zn2+ and Cu2+ 
C)  Na+ and K+ 
D)  Cl- and S 
E)  K+ and Cl-

Question 20

Consider the element with the electron configuration [Kr]5s24d105p5. This element is

Accepted Answer

A)  a representative element 
B)  a transition metal 
C)  an alkali metal 
D)  an actinide element 
E)  a noble gas 
A)  a representative element 
B)  a transition metal 
C)  an alkali metal 
D)  an actinide element 
E)  a noble gas

Exam 8: Periodic Relationships Among the Elements

Which, if any, is the ground-state electron configuration for I-

Which of the elements listed below has the greatest atomic radius

Which of the following atoms has the greatest electron affinity (largest positive value)

Which of the following elements behaves chemically similarly to oxygen

Concerning the electron configuration of F, 1s22s22p5, which, if any, is the configuration for the valence shell electrons only

Which of the following is the general electron configuration for the outermost electrons of the noble gases

How many core electrons does a silicon atom have

For silicon atoms, which ionization energy will show an exceptionally large increase over the preceding ionization energy

Which of the following ground-state ions has the largest number of unpaired electrons

Which of the following is the general electron configuration for the outermost electrons of the halogens

How many valence electrons does P3- have

How many 3d electrons does the manganese(II) ion, Mn2+, have

Which of the following reactants can be combined to produce hydrogen gas as a product

Which of the following elements has the smallest first ionization energy

Consider the following reaction 2A + 3F2 →\rarr→ 2AF3. What is the formula for the reaction product if we substitute sulfur for fluorine

The second ionization energy of Mg is ________ than its first ionization energy, and is __________ than the second ionization energy of Na.

Which element will display an unusually large jump in ionization energy values between I3 and I4, its third and fourth ionization energies

Which of the following elements is found as a monatomic species in its most stable form

Which one of the following pairs are isoelectronic

Consider the element with the electron configuration [Kr]5s24d105p5. This element is

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Which, if any, is the ground-state electron configuration for I^-

Concerning the electron configuration of F, 1s²2s²2p⁵, which, if any, is the configuration for the valence shell electrons only

How many valence electrons does P^3- have

How many 3d electrons does the manganese(II) ion, Mn²⁺, have

Consider the following reaction 2A + 3F₂ $\rarr$ 2AF₃. What is the formula for the reaction product if we substitute sulfur for fluorine

The second ionization energy of Mg is than its first ionization energy, and is __ than the second ionization energy of Na.

Which element will display an unusually large jump in ionization energy values between I₃ and I₄, its third and fourth ionization energies

Consider the element with the electron configuration [Kr]5s²4d¹⁰5p⁵. This element is