Homework Help

A) Why are dipole forces of attraction not found in halogen molecules?  

user profile pic

tubee | Student, Grade 10 | Salutatorian

Posted May 1, 2013 at 4:31 AM via web

dislike 1 like

A) Why are dipole forces of attraction not found in halogen molecules?

 

Tagged with chemistry, science

1 Answer | Add Yours

user profile pic

llltkl | College Teacher | Valedictorian

Posted May 1, 2013 at 7:12 AM (Answer #1)

dislike 2 like

Dipole-dipole attractions are a type of intermolecular forces of attraction found in molecules having a permanent dipole like SO2, NH3 etc. Halogen molecules are homonuclear diatomics, bound by a shared covalent bond between two atoms. The atoms at the two sides of the bond are identical, and as a result the shared electron pair resides exactly at the centre of the bond joining the two. That means, there is no development of permanent polarity within the molecule. In other words the halogen molecules are non polar. So there is no question of a dipole – dipole intermolecular force of attraction in halogen molecules. Temporary dipoles, however, are induced and such induced dipole – induced dipole interactions bind different molecules of halogens together.

Sources:

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes