The four spheres below represent K+, Ca2+, Cl–, and S2-, not necessarily in that order.
62) Which sphere most likely represents the K+ ion?
A) A
B) B
C) A or B
D) C or D
63) Which sphere most likely represents the Ca2+ ion?
A) A
B) B
C) A or B
D) C or D
64) Which sphere most likely represents the Cl⁻ ion?
A) A
B) B
C) A or B
D) C or D
65) Which sphere most likely represents the S2– ion?
A) A
B) B
C) A or B
D) C or D
66) Atoms of which element, indicated by letter on the periodic table above, would be expected to have
the lowest first ionization energy, Ei1?
A) A
B) B
C) C
D) D
67) Atoms of which element, indicated by letter on the periodic table above, would be expected to have
the highest first ionization energy, Ei1?
A) A
B) B
C) C
D) D
68) Atoms of which element, indicated by letter on the periodic table above, would be expected to have
the highest second ionization energy, Ei1?
A) A
B) B
C) C
D) D
69) Atoms of which element, indicated by letter on the periodic table above, would be expected to have
the lowest second ionization energy, Ei1?
A) A
B) B
C) C
D) D
70) Atoms of which element, indicated by letter on the periodic table, would be expected to have the most
negative value of Eea?
A) A
B) B
C) C
D) D
71) Which of the above pictures best represents a solid ionic compound?
A) picture (a)
B) picture (b)
C) picture (c)
D) picture (d)
72) Which of the above pictures best represents a gaseous covalent compound?
A) picture (a)
B) picture (b)
C) picture (c)
D) picture (d)
73) Which of the above pictures are more likely to represent ionic compounds?
A) pictures (a) and (b)
B) pictures (a) and (d)
C) pictures (b) and (c)
D) pictures (b) and (d)
74) Which of the above pictures are more likely to represent covalent compounds?
A) pictures (a) and (b)
B) pictures (a) and (d)
C) pictures (b) and (c)
D) pictures (b) and (d)
75) Which salt has the highest lattice energy?
A) picture (a)
B) picture (b)
C) picture (c)
D) picture (d)
76) Which salt has the lowest lattice energy?
A) picture (a)
B) picture (b)
C) picture (c)
D) picture (d)
77) What is the likely formula for the binary compound formed from the elements represented by letters
A and C on the periodic table above?
A) AC
B) A2C
C) AC2
D) A2C3
78) What is the likely formula for the binary compound formed from the elements represented by letters
A and D on the periodic table above?
A) AD
B) A2D
C) AD2
D) A2D3
79) Which element, indicated by letter on the periodic table, is able to form compounds that do not obey
the octet rule?
A) A
B) B
C) C
D) D
6.2 Algorithmic Questions
1) Which contains ionic bonds?
A) CH4
B) CaCl2
C) Cl2
D) NCl3
2) Which contains covalent bonds?
A) LiOO
B) NH3
C) LiCl
D) CaI2
3) Which contains both covalent bonds and ionic bonds?
A) HBr
B) LiI
C) NH3
D) NH4Cl
4) How many electrons are in the outermost shell of the Al3+ ion in its ground state?
A) 2
B) 3
C) 6
D) 8
5) How many electrons are in the outermost shell of the K+ ion in its ground state?
A) 0
B) 2
C) 6
D) 8
6) Which two ions have the same electron configuration in the ground state?
A) Cs+ and Li+
B) Ca2+ and Cl–
C) Se2+ and Cl–
D) Fe2+ and Fe3+
30
7) Which ion does not have a noble gas configuration in its ground state?
A) Sc3+
B) Al3+
C) Zn2+
D) Te2-
8) Which ion does not have a noble gas configuration in its ground state?
A) Si4+
B) Sc3+
C) Zn2+
D) Se2-
9) Give the electronic configuration for Mn2+.
A) [Ar]2s22p63d5
B) [Ar]4s23d3
C) [Ar]4s13d4
D) [Ar]3d5
10) Indicate which is larger in each of the following two sets.
(I) Cr2+ or Cr (II)N2- or N
A) Cr2+ is larger than Cr and N3– is larger than N.
B) Cr2+ is larger than Cr and N is larger than N3-.
C) Cr is larger than Cr2+ and N3– is larger than N.
D) Cr is larger than Cr2+ and N is larger than N3-.
11) Of the following, which element has the highest first ionization energy?
A) barium
B) cesium
C) indium
D) rubidium
12) Of the following, which element has the highest first ionization energy?
A) indium
B) rubidium
C) tin
D) strontium
13) Of the following, which element has the highest first ionization energy?
A) In
B) I
C) Rb
D) Sb
14) Of the following, which element has the highest first ionization energy?
A) Ra
B) Fr
C) K
D) Sr