Based on the data in the tables above, which of the following statements provides the best prediction for the boiling
point of NaCl?
(A)
(B)
(C)
(D)
NaCl will have a lower boiling point than NaF because the coulombic attractions are weaker in NaCl than in
NaF.
NaCl will have a boiling point between that of NaF and MgO because the covalent character of the bonds in
NaCl is intermediate between that of MgO and NaF.
NaCl will have a higher boiling point than MgO because the ions are spaced farther apart in NaCl.
NaCl will have a higher boiling point than MgO because the energy required to transfer electrons from the
anion to the cation is larger in NaCl than in MgO.