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Calcium
Calcium, with the chemical symbol Ca, is an essential alkaline earth metal and a fundamental building block for life. It was first isolated in the 19th century by Sir Humphry Davy through electrolysis.
On Earth, calcium ranks as the fifth most abundant element in the Earth's crust and is predominantly found in the form of calcium carbonate, gypsum, and anhydrite. In addition to its role as a component of bones and teeth, calcium plays a crucial role in biological processes such as blood clotting, muscle contraction, and cell communication.
In industry, calcium finds broad application. Calcium oxides are used in the construction industry for mortar and lime, while calcium carbonate is employed in paper production and as a filler in plastics.
Future applications could emerge in energy generation and environmental technology. Research on calcium-based batteries and calcium carbonate as a CO2 sink indicates potential developments.
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