Ms. Cal

Calcium (Ca)

Basic Facts

  • Group 2
  • Period 4
  • 20 Protons
  • 20 Electrons
  • 20 Neutrons
  • Its mass number is 40
  • Its a alkali earth metal
  • The word calcium is derived from the Latin calx (lime).

Physical Properties

  • Solid at room temperature
  • it is a silvery- gray color
  • It's malleable and ductile
  • It is a good conductor of heat and electricity
  • Melting point: 1,548 F (842 C)
  • Boiling point: 2,703 F (1,484 C)
  • Atomic Weight: 40.078

  • Density is 1.55 g/cm cubed


  • I was discovered by Sir Humphrey Davy at 1808 in England.
  • I am the basic of leaves, bones, teeth, and shells.
  • I am the 5th most abundant element in the earth's crust and make up more than 3% of the crust.
  • Calcium does not occur as the metal itself in nature, but is found in many minerals including as limestone, gypsum and fluorite.

My Uses

I form alloys with aluminum, beryllium, copper, lead, and magnesium. I am used in the manufacture of other metals such a uranium and thorium. I remove oxygen, sulfur, and carbon from alloys. When i come from limestone, i am a vital component of Portland cements. I also make your bones really strong and healthy.