How do I find an order for melting point for: KF, CaF2, CaO, RbBr (from highest melting point to lowest melting point)? I feel like I look at the charges to estimate the intermolecular force but I do not know how.

Question

anonymous · Answer

the more electromagnetic the compounds are, the higher the boiling point usually is.

anonymous · Answer

so do I look at the ionic charges?

wolfe8 · Answer

http://chemwiki.ucdavis.edu/Inorganic_Chemistry/Descriptive_Chemistry/Periodic_Table_of_the_Elements/Periodic_Trends#Periodic_Trends_for_Melting_Point Read for melting points