Group 7A Elements (ns np, n>2) All halogens are nonmetals with the general formula X2, where X denotes a halogen element. Group 6A Elements (ns np, n>2) Oxygen, sulfur, and Selenium are nonmetals, and the last two (tellurium and polonium) are metalloids.The name "chalcogen" means "ore former," derived from the Greek words chalcos ("ore") and -gen ("formation"). Group 6A (or VIA) of the periodic table are the chalcogens : the nonmetals oxygen (O), sulfur (S), and selenium (Se), the metalloid tellurium (Te), and the metal polonium (Po).The elements tend to react to gain 3 electrons to be like noble.Some chemistry of the non-metal Group 5A Elements.Elements and Symbols Element Type State.Periodic Properties: Groups 5A, 6A, and 7A.but the elements in tose grous are called representative elements because.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |