What does the octet rule state that explains why atoms bond?

An atom bonds to have eight valence electrons to become stable. The third shell would be empty so that the eight electrons in the second level would be outermost after the atom loses one electron.

ljjjljlj kjlk,ljym jlyu; jm; l mumytj

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.