Tricresyl Phosphate Tricresyl Phosphate Definition Tricresyl phosphate (TCP) is a colorless, odorless liquid. Insoluble in water and slightly denser than water. Toxic by ingestion and skin absorption.…
Tellurium Tellurium Definition Tellurium is a metalloid element that occurs as either a brittle, shiny, silvery-white crystal or a gray or brown powder. It is far…
Polonium Polonium Definition Polonium is a radioactive metallic element, occurring naturally in small quantities as a product of radium disintegration and produced synthetically by bombarding bismuth…
Bismuth Bismuth Definition Bismuth is a brittle, pinkish-white, crystalline metallic element that occurs in nature as a free metal and in various ores. Bismuth is the…
Cadmium Cadmium Definition Cadmium is a rare, soft, bluish-white metallic element that occurs mainly in zinc, copper, and lead ores. Its atomic number 48; atomic weight…
Atomic Clock Atomic Clock Definition Atomic clock is an extremely precise clock whose rate is controlled by a periodic process, such as vibration, or the absorption or…
Caesium Caesium Definition Caesium is a soft, ductile, silvery-white element of the alkali group. It is liquid at room temperature and is the most reactive of…
Barium Definition Barium is a soft, silvery-white metallic element of the alkaline-earth group. It occurs only in combination with other elements, especially in barite. It is…
Strontium Strontium Definition Strontium is a soft, silvery metallic element of the alkaline-earth group that occurs naturally only as a sulfate or carbonate. It is the…
Rubidium Rubidium Definition Rubidium is a soft, silvery-white metallic element of the alkali group. It ignites spontaneously in air and reacts violently with water. It is…
About Lithium About Lithium Definition Lithium is a soft, silvery metallic element of the alkali group that occurs in small amounts in some minerals. It is the…
Aluminium Aluminium Definition Aluminium is a silvery-white, ductile metallic element, the most abundant in the earth’s crust but found only in combination, chiefly in bauxite. Aluminium…