1. Group 1 (Alkali Metals)Group 2 (Alkaline Earth Metals)Group 13 (Boron Group)Group 14 (Carbon Group)Group 15 (Nitrogen Group)Group 16 (Chalcogens)Group 17 (Halogens)Group 18 (Noble Gases)
2.The elements in each group have the same number of electrons in the outer orbital
3.Group 2 elements share common characteristics. Each metal is naturally occurring and quite reactive.
4.There are 18 numbered groups in the periodic table
5.many characteristics are common throughout the group