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All About Calcium: Properties, Uses, and Historical Significance

Calcium, symbol Ca, is a vital chemical element with atomic number 20 and an atomic mass of 40.078. Discovered by Sir Humphrey Davy in 1808, it derives its name from the Latin "Calcis," meaning lime. This solid metal is found abundantly in nature, especially in limestone. Calcium plays essential roles in human nutrition and is used in treating heartburn, indigestion, and high cholesterol. It also forms chemical compounds like calcium carbonate and calcium chloride, vital in various applications, including refrigeration and road maintenance.

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All About Calcium: Properties, Uses, and Historical Significance

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  1. calcium Eric Potter 5th period Benton

  2. Symbol of element Ca

  3. Atomic mass 40.078

  4. Atomic number 20

  5. Periodic Table Calcium is found metals

  6. History • Calcium was discovered by Sir Humphrey Davy, a British chemist, 1808 • It got its name from Calcis, which is Latin for lime. • Combining Ca in calcium is how it got its symbol.

  7. 3 uses of calcium Treating heartburn indigestion High cholesterol

  8. Appearance in natural form • Firm, silver that is natural in soil systems such as limestone.

  9. 2 Physical Properties of Calcium • Melting point 839+/-/-2 C • Boiling point 1484 C

  10. State of matter at room temperature • Calcium is a solid at room temperature

  11. 2 Chemical Properties • 1.) readily forms a white coating of Calcium Nitride in air • 2.) reacts with water the metal burns forming Nitride

  12. Calcium commonly exists with….. • Calcium carbonate- (CaCO3) is the main component of shells of marine organisms, snails, pearls, and eggshells. • Calcium chloride- (CaCl2) common applications include brine for refrigeration plants, ice and dust control on roads

  13. Calcium extra facts • Calcium is essential for human nutrition. • The Romans prepared lime (called calx) in the 1st century. • Calcium is the 5th most abundant element in the earth’s crust.

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