Find the density of an 8 gram rock if the water in a graduated cylinder rises from 25.0 mL to 29.0 mL when the rock is placed in to the graduated cylinder.

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.