Saturday, November 5, 2011

The history of the name Calcium & Symbol

The name Calcium comes from the Latin word calx, lime. Though lime was prepared by the Romans in the first century under the name calx. Also the symbol for Calcium is Ca.

The Discovery of Calcium

Calcium was discovered by Sir Humphry Davy in 1808 in London. Davy described his experiment that year, which produced tiny amounts of metal, at best. Then a letter from Jons Berzelius in Stockholm pointed him in the right directions.

Properties of Calcium

  • The Atomic number of Calcium is 20
  • The Atomic mass of Calcium is 40.08
  • Calcium is a metal
  • Calcium's color is silvery
  • It's state of matter is a solid
  • It's boiling point is 1484 degrees Celsius
  • It's melting point is 842 degrees Celsius 

Bohr model of Calcium

P-20
N-20
E-20

Group number & Family & Period number of Calcium

The group number of Calcium is Group 2. Also the family of Calcium includes; Beryllium, Magnesium, Strontium, Barium, and Radium. Lastly the period number of Calcium is Period 4.

Uses of Calcium

Calcium is vital in the construction of skyscrapers. That's because limestone is a key ingredient to cement used in building construction. Limestone is from Calcium because calx means lime.