2 April 2021 Bulletin

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Cobalt

Cobalt is a chemical element with symbol Co and atomic number 27. [1] It is a hard ferromagnetic, silver-white, lustrous, brittle element. It is a member of group VIII of the periodic table. Like iron, it can be magnetised. Cobalt is similar to iron and nickel in its physical properties. The element is active chemically, forming many compounds. Cobalt is stable in air and unaffected by water, but is slowly attacked by dilute acids. [2] It will burn when exposed to heat and the fumes may be hazardous. Small amounts of cobalt are found in most rocks, soil, water, plants, and animals. It is a component of vitamin B-12, which is required for good health. [3]


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