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Calcium

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Calcium
Atomic symbol Ca
Atomic number 20
Atomic mass 40.08
Classification Alkaline earth metal
Melting point 839°C1,112.15 K
1,542.2 °F
2,001.87 °R
Boiling point 1484°C1,757.15 K
2,703.2 °F
3,162.87 °R
Density 1.54 g/cm³

Calcium is an essential element for human health. Its is a main component of bones and is used in muscle contractions and nerve function. Dietary calcium is commonly obtained from dairy products such as milk and cheese.

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