Answer:
bromine
Explanation:
Any element in the halogen group will have seven valence electrons. These elements include fluorine, chlorine, bromine, iodine, and astatine
Distance is a scalar and measured only by units (meters, feet). Position is a vector and depends on where the origin is. It can be negative or positive and has direction.
I hope this can help you ask me if you need help again
A 4x100 relay is where 4 people run 100 meters and a 4x400 relay is where 4 people run 400 meters