Transition metals such as copper most often exist in nature as compounds, such as cupric nitrate or cupric oxide. Purifying copper from one of these natural sources requires which type of reaction

what does the table look like

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.