sound and light are carried in the form of waves. A wave is a repeating vibration that transfers either sound or light energy from one place to another.

distance, luminosity, brightness, radius, chemical composition, and temperature

the awnser is group 12

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.