Final answer:
The families of elements are named as Metals and Noble Gases, not Metalloids and Atoms or other options provided. The classification into metals, nonmetals, metalloids, and named groups like halogens and noble gases reflects their shared properties.
Step-by-step explanation:
The terms that name families of elements are Metals and Noble Gases (C). In the periodic table, elements can be broadly classified into metals, nonmetals, and metalloids (or semi-metals). Metals are typically shiny, conductive, malleable, and ductile. They occupy the left three-fourths of the periodic table. Nonmetals are usually dull and poor conductors, located in the upper right-hand corner of the table.
The two important nonmetal families are the halogens (Group 17) and the noble gases (Group 18). Metalloids have properties in-between those of metals and nonmetals and are positioned along the staircase line in the periodic table. Grouped elements with similar chemical properties such as the alkali metals (Group 1) and alkaline earth metals (Group 2) are also considered families of elements.