The strengths of the covalent bonds inside halogen molecules, and the van der Waals’ forces acting between halogen molecules, change down Group 17 from chlorine to bromine to iodine. Which row presents these correctly?
- Acovalent bonds decrease; van der Waals’ forces decrease
- Bcovalent bonds decrease; van der Waals’ forces increase
- Ccovalent bonds increase; van der Waals’ forces decrease
- Dcovalent bonds increase; van der Waals’ forces increase