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  1. Cobalt - Wikipedia

    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 …

  2. Cobalt | History, Uses, Facts, Physical & Chemical Characteristics

    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.

  3. Cobalt | Uses, Properties, & Facts | Britannica

    May 26, 2025 · 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 large …

  4. Cobalt Definition, Facts, Symbol, Discovery, Property, Uses

    Cobalt (pronunciation: KO-bolt) is a hard, lustrous silvery-blue element belonging to the group of transition metals, and it is represented by the chemical symbol Co [1, 2, 3].

  5. Cobalt | U.S. Geological Survey - USGS.gov

    Dec 19, 2017 · Cobalt is a silvery gray metal that has diverse uses based on certain key properties, including ferromagnetism, hardness and wear-resistance when alloyed with other …

  6. Cobalt - New World Encyclopedia

    Cobalt (chemical symbol Co, atomic number 27) is a hard, lustrous, silver-gray metal. It is found in various ores and is important as a trace element in the human body.

  7. Cobalt - Element information, properties and uses | Periodic Table

    Element Cobalt (Co), Group 9, Atomic Number 27, d-block, Mass 58.933. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

  8. WebElements Periodic Table » Cobalt » the essentials

    Cobalt is a brittle, hard, silver-grey transition metal with magnetic properties similar to those of iron (ferromagnetic). Cobalt is present in meteorites. Ore deposits are found in Zaire, Morocco and …

  9. Understanding Cobalt: Properties, Uses, and Applications

    - Cobalt is a hard, metallic element symbolized as Co with an atomic number of 27. - This transition metal is crucial for various applications, such as rechargeable batteries, superalloys, …

  10. Cobalt - HyperPhysics

    Cobalt is a silvery-white metal, with a slight reddish tinge. It occurs in the minerals smaltite and safflorite with the composition CoAs 2. Cobalt also forms an arsenide with the content CoAs 2 …

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