Question

Based on the expected intermolecular forces, which halogen has the lowest boiling point? based on the expected intermolecular forces, which halogen has the lowest boiling point? i2 f2 cl2 br2

Answer 1

Actually the strength of London dispersion forces highly depend on the total number of electrons and the area in which they are spread. We can see clearly that iodine will have the strongest LDF's, and hence, have the highest boiling point (and melting point). This is also the reason why iodine is a solid at room temperature, bromine is liquid and chlorine and fluorine are gases.

 

Answer:

Fluorine (F2)