Chapter 08 – Periodic Relationships Among the Elements
46. Which of the following is the electron configuration for the bromide ion?
47. Which of the following is the electron configuration of a sulfide ion?
Chapter 08 – Periodic Relationships Among the Elements
48. Which of the following is the electron configuration of the iron(III) ion?
49. The electron configuration of a copper(I) ion is
Chapter 08 – Periodic Relationships Among the Elements
Chapter 08 – Periodic Relationships Among the Elements
53. The cobalt(III) ion, Co3+, has how many 3d electrons?
Chapter 08 – Periodic Relationships Among the Elements
54. How many 3d electrons does the manganese(II) ion, Mn2+, have?
55. How many 3d electrons does an Fe3+ ion have?
Chapter 08 – Periodic Relationships Among the Elements
56. Which of the following ground-state ions has the largest number of unpaired electrons?
57. Which of the following ground-state ions has unpaired electrons?
Chapter 08 – Periodic Relationships Among the Elements
58. The effective nuclear charge (Zeff) felt by the outermost electrons is the strongest for
which of the following elements?
59. The effective nuclear charge (Zeff) felt by the outermost electrons is the strongest for
which of the following elements?
Chapter 08 – Periodic Relationships Among the Elements
60. Which of the atoms listed below has the smallest radius?
61. Which of the atoms listed below has the largest radius?
Chapter 08 – Periodic Relationships Among the Elements
62. Which of the elements listed below has the greatest atomic radius?
63. Which one of the following ions has the largest radius?
Chapter 08 – Periodic Relationships Among the Elements
64. Arrange the following ions in order of increasing ionic radius: K+, P3– , S2–, Cl– increasing
65. Arrange the following ions in order of decreasing ionic radius: Al3+, Mg2+, Na+, O2–
Chapter 08 – Periodic Relationships Among the Elements
66. For which of the following reactions is the enthalpy change equal to the second ionization
energy of nitrogen?
67. For which of the following reactions is the enthalpy change equal to the third ionization
energy of vanadium?
Chapter 08 – Periodic Relationships Among the Elements
68. Which of the elements listed below has the highest first ionization energy?
69. Which of the elements listed below has the highest first ionization energy?
Chapter 08 – Periodic Relationships Among the Elements
70. Which of the elements listed below has the smallest first ionization energy?
71. Which of the following elements has the smallest first ionization energy?
Chapter 08 – Periodic Relationships Among the Elements
72. Which of the following elements has the smallest ionization energy?
73. Which element will display an unusually large jump in ionization energy values between
I3 and I4, its third and fourth ionization energies?
Chapter 08 – Periodic Relationships Among the Elements
74. For silicon atoms, which ionization energy will show an exceptionally large increase over
the preceding ionization energy?
75. For phosphorus atoms, which ionization energy will show an exceptionally large increase
Chapter 08 – Periodic Relationships Among the Elements
76.
Which of the elements listed below has the following pattern for its first six ionization energies? (I1 = first ionization energy,
I2 = second ionization energy, etc.)
Chapter 08 – Periodic Relationships Among the Elements
77. The successive ionization energies of a certain element are I1= 589.5 kJ/mol, I2 =1145
kJ/mol, I3= 4900 kJ/mol, I4 = 6500 kJ/mol, and I5 = 8100 kJ/mol. This pattern of ionization
energies suggests that the unknown element is
78. The successive ionization energies of a certain element are I1= 577.9 kJ/mol, I2 = 1820
kJ/mol, I3= 2750 kJ/mol, I4 = 11,600 kJ/mol, and I5 = 14,800 kJ/mol. This pattern of
ionization energies suggests that the unknown element is
Chapter 08 – Periodic Relationships Among the Elements
79. Which of the following elements has the greatest electron affinity (largest positive
value)?
80. Which of the following elements has the greatest electron affinity (largest positive
value)?
Chapter 08 – Periodic Relationships Among the Elements
81. Which of the following atoms has the greatest electron affinity (largest positive value)?
82. The first ionization energy of sodium is 495.9 kJ/mol. The energy change for the reaction
Na(s) →Na+(g) + e– is therefore
Chapter 08 – Periodic Relationships Among the Elements
83. The first ionization energy of mercury is 1006 kJ/mol. The energy change for the reaction
Hg(l) →Hg+(g) + e– is therefore
84. The electron affinity of fluorine is essentially equal to