Cobalt
Cobalt is a hard, silver-blue chemical element with the symbol Co and atomic number 27. It’s mainly known for its role in rechargeable batteries, especially lithium-ion batteries used in smartphones, laptops, and electric vehicles.
Some key facts about cobalt:
It’s naturally found in the Earth’s crust, often alongside nickel and copper ores.
It is magnetic and highly resistant to heat and corrosion.
Cobalt compounds are used to create deep blue pigments in glass, ceramics, and paints.
In industry, it’s important for superalloys used in jet engines and turbines.
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