↓ Period 2 3 4 5 6 7 The chalcogens are the chemical elements in group 16 (old-style: VIB or VIA) of the periodic table. This group's sometimes known as the oxygen family. It consists of the elements oxygen (O), sulfur (S), selenium (Se), tellurium (Te), the radioactive element polonium (Po), and the synthetic element ununhexium (Uuh). Like other groups, members of this family show similar patterns in their electron configuration, especially the outermos… (More on Chalcogen)