The bond strengths of the covalent bonds inside halogen molecules, together with the van der Waals’ forces between halogen molecules, change down Group 17 from chlorine to bromine to iodine. Which row shows 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