• Name: Strontium

  • Symbol: Sr

  • Number of Energy Levels: 5

  • Electrons on the outer energy level: 2

  • Atomic Number: 38

  • Atomic Mass: 87.62 Amu

  • Protons / Electrons: 38

  • Neutrons: 50

  • Density: 2.54 g/cm3

  • Classification: Alkaline Earth

Top 19 interesting facts about Strontium

  • Strontium was discovered in 1790 by Adair Crawford and William Cruickshank. Its name derives from the word "Strotian" which is a Scottish town.
  • Strontium's melting point is at 769.0 C (1042.15 K, 1416.2 F) and its boiling point is at 1384.0 C (1657.15 K, 2523.2 F).
  • Strontium is a soft metal.
  • Strontium is a silver-white or yellowish (when it is exposed to air) very reactive metal.
  • Strontium is very similar from the chemical and physical point of view with its two neighbors, calcium and barium.
  • Naturally, it occurs in the minerals such as celestine, putnistine, and strontianite.
  • Because strontium is highly reactive with oxygen and water, it can't be find freely in nature.
  • In order to prevent oxidation, strontium is kept under mineral oil or kerosene.
  • Strontium is used for production of cathode ray tubes for television sets but the replacement of these displays with modern ones changes the consumption of strontium.
  • Because of its volatility, strontium is used in pyrotechnics and in the flare production.
  • Strontium is the 15th most common element on Earth.
  • China is the biggest producer of strontium (two thirds of the world's production) followed by Spain, Mexico, Turkey, Argentina, and Iran.
  • Strontium has 20 isotopes but only four of them are stable: 84-Sr, 86-Sr, 87-Sr, and 88-Sr.
  • 90-Sr is one of the unstable isotopes of strontium and it is a byproduct of nuclear fusion.
  • 90-Sr is one of the long-lived high-energy beta emitters known today and it might be use in future as a power source.
  • 89-Sr is used in cancer treatment.
  • Strontium chloride is used in tooth paste production.
  • A magnesium alloy used in car and motorcycle production contains 2% strontium.
  • The stable forms of strontium don't have a significant health treat on human body.