NAMES:

Below are the melting points and boiling points of groups 14 through 17 (C group through the halides).  Explain the overall trends in these boiling and melting points and what the causes are for the exceptions.



What physical property or phenomenon is responsible for the general trend?  (Notice that all of group 14 follows the general trend.) 
 

What compounds break from the general trend?


 

What force is responsible for the compounds listed above not to follow the general trend? ___________________________________