Atomic number: 27

Symbol: Co

Average atomic mass: 58.933 200

Histroy and Properties: Cobalt is of low quantity in earths crust, cobalt is a bluish white hard brittle metal. cobalt is one of the few metals that is ferromagnetic at room temperature. George Brandt found cobalt in 1737 trying to find out why some glasses are tented blue.

Uses: Cobalt is used for cutting tools, Stainless steal, Magentic Steals, Jet turbines, Gas generators, Cobalt also gave the blue colors in porcelain, glass, pottery, tiles, and enamels

Cost of Cobalt:Single compact sources of Cobalt-60 vary from about $1 to $10/curie, depending on quantity and specific activity

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