Which of the following compounds would be expected to have the lowest melting point? A)AlF₃ B)RbF C)NaF D)MgF₂ E)CaF₂

Question

Quizplus · Accepted Answer

RbF has the lowest melting point because it has the largest cation and anion, which leads to weaker electrostatic forces holding the ions together. This makes it easier for the solid to break apart into a liquid. The other compounds all have smaller cations and/or anions, resulting in stronger electrostatic forces and higher melting points.

Which of the Following Compounds Would Be Expected to Have