Question

Why are group 16 elements called chalcogens?

Why are the elements of group 16 called chalcogens?

Answer 1

Group 16 elements are called chalcogens because:

1. The term chalcogen means ore-forming elements.
2. Oxygen, sulphur, selenium, and tellurium often form metal ores.
3. Many metal ores in the earth’s crust are oxides and sulphides of these elements, e.g., Cu₂O, CuO, Ag₂S, FeS, ZnS.
4. Some metals, like gold, occur as selenides and tellurides.
5. This group forms many important compounds in nature related to ores.