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Calcium

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Calcium is a soft gray alkaline earth metal that is the fifth most abundant element in the Earth's crust and dissolved ion in seawater. Calcium is essential for living organisms as the calcium ion functions as a signal in cell physiology and is a major material used in mineralization of bone, teeth, and shells.

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20 Calcio –Calcium Mass: 40,078 u [Ar] 4s2 Melting point: 1115 K Boiling point: 1757 K Density: 1550 kg/m3 Discovery: Humphry Davy, 1808 Calcium is a soft gray alkaline earth metal, and is the fifth-most- abundant element by mass in the Earth's crust. Calcium is also the fifth-most-abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate . Calcium is essential for living organisms, in particular in cell physiology , where movement of the calcium ion Ca2+ into and out of the cytoplasm functions as a signal for many cellular processes. As a major material used in mineralization of bone, teeth and shells , calcium is the most abundant metal by mass in many animals.(in Spanish: calcio)

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Calcium

  • 1. 20 Calcio –Calcium Mass: 40,078 u [Ar] 4s2 Melting point: 1115 K Boiling point: 1757 K Density: 1550 kg/m3 Discovery: Humphry Davy, 1808 Calcium is a soft gray alkaline earth metal, and is the fifth-most- abundant element by mass in the Earth's crust. Calcium is also the fifth-most-abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate . Calcium is essential for living organisms, in particular in cell physiology , where movement of the calcium ion Ca2+ into and out of the cytoplasm functions as a signal for many cellular processes. As a major material used in mineralization of bone, teeth and shells , calcium is the most abundant metal by mass in many animals.(in Spanish: calcio)