metalloid Also called a semimetal, any of a class of chemical elements intermediate in properties between metals and nonmetals. The classification is not clear cut, but the generally recognized metalloids – boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), selenium (Se), and tellurium (Te) – form a diagonal band in the periodic table. They are electrical semiconductors and their oxides are amphoteric. Related category INORGANIC CHEMISTRY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |