Calcium: A Chemical Element On The Periodic Table

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Calcium is a chemical element on the periodic table with the symbol Ca with atomic number 20. Calcium is a soft- gray alkaline earth metal, fifth- most- abundant element by mass in the Earth’s crust. This element comes in the metal section on the periodic table. Sir Humphry Davy discovered this element in 1808. This element was discovered through electrolysis of a mixture of lime and mercuric oxide. Calcium is useful to produce glass, batteries and steel. It can combine with other elements and these compounds are used for variety of purposes. Calcium has a melting point of 842˚C and has a boiling point of 1484˚C

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