Pure copper metal has a very high conductivity Brass, an alloy of copper and zinc, has a much lower conductivity. Why are the
conductivities different?

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.

the pseudoscience are like beliefs, theories, or like practices that are considered scientific