Rubidium belongs to Group I of the Periodic Table, whereas bromine belongs to Group VII of the Periodic Table. Rubidium and bromine react together to make an ionic compound. Which row indicates the electron transfer for rubidium and gives the correct formula for the rubidium ion produced?
- Aelectron gained, $\text{Rb}^+$
- Belectron gained, $\text{Rb}^-$
- Celectron lost, $\text{Rb}^+$
- Delectron lost, $\text{Rb}^-$