Group 16

This chapter covers the nonradioactive elements of Group 16 (O to Te), commonly called the chalcogens. Many properties of these elements are tabulated. There is extensive coverage of the natural sources and preparations of these elements, their structures, properties, uses, and biological significance. The properties of dioxygen and ozone are discussed, as are the peroxides, superoxides, and ozonide ions, the oxides, oxoacids, and oxoanions of S, Se, and Te. Further coverage includes the halides, hydrides, oxohalides, nitrides of sulfur, and organic derivatives. The coverage of these topics includes references published through to mid-2021.