Cobalt is a chemical element; it has symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in …

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2025年3月19日 · Cobalt, metallic chemical element, one of the transition elements, atomic number 27. The metal is used especially for heat-resistant and magnetic alloys. A relatively …

Cobalt is transition metal and was discovered in pure form in 1735. It is essential part of vitamin B 12. Its compounds are known as cobalt blue used to color pottery and glass. History and …

2015年2月5日 · Properties, sources and uses of the element cobalt. Some common forms of cobalt include cobalt-60 and cobalt chloride. Cobalt blue is a vivid color used in artwork.

Cobalt is a chemical element with symbol Co and atomic number 27. Classified as a transition metal, Cobalt is a solid at room temperature. J.C. Slater, J Chem Phys, 1964, 41 (10), 3199 …

Named from the German word meaning “goblin,” cobalt is a shiny, brittle, bluish-gray metal. It is a hard, stable metal unaffected by air or water and only slowly affected by acid. Cobalt is one of …