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Definition, mass & chemical names. Cobalt is transition metal and was discovered in pure form in 1735. It is essential part of vitamin B12. Its compounds are known as cobalt blue used to color pottery and glass. History and Discovery. Cobalt has been used as a coloring agent since Bronze Age.
Aug 17, 2021 · Properties. Cobalt has a melting point of 1495°C, boiling point of 2870°C, specific gravity of 8.9 (20°C), with a valence of 2 or 3. Cobalt is a hard, brittle metal. It is similar in appearance to iron and nickel. Cobalt has a magnetic permeability around 2/3 that of iron.
cobalt, Metallic chemical element, one of the transition element s, chemical symbol Co, atomic number 27. Widely dispersed in small amounts in many minerals and ores, this magnetic, silvery white metal with a faint bluish tinge is used mostly for special alloys (e.g., alnico, tool steel) with exacting applications.
Dec 21, 2023 · December 21, 2023. Cobalt is essential for powering our modern technology. The metal is commonly used to make lithium-ion batteries, which are found in items such as electric vehicles, computers,...
By National Minerals Information Center. Statistics and information on the worldwide supply of, demand for, and flow of the mineral commodity cobalt. Cobalt (Co) is a metal used in numerous diverse commercial, industrial, and military applications, many of which are strategic and critical. On a global basis, the leading use of cobalt is in ...
Cobalt is a bluish-white, lustrous, hard, brittle metal. It is ferromagnetic. The metal is active chemically, forming many compounds. Cobalt stays magnetic to the highest temperature of all the magnetic elements (it has a Curie point of 1121 o C). Uses of Cobalt.
Cobalt is the 27th element in the periodic table and has a symbol of Co and atomic number of 27. It has an atomic weight of 58.93319 and a mass number of 59. Cobalt has twenty-seven protons and thirty-two neutrons in its nucleus, and twenty-seven electrons in four shells. It is located in group nine, period four and block d of the periodic table.
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