ESL Saigon logo



Name: Barium
Symbol: Ba
Number of Energy Levels: 6
Electrons on the outer energy level: 2
Atomic number: 56
Atomic Mass: 137.327 Amu (Atomic Mass Units)
Protons/Electrons: 56
Neutrons: 81
Density: 3.51 g/cm3
Classification: Alkaline Earth

Barium | Chemical elements

Barium was discovered in 1808 by Sir Humphrey Davy. Its name derives from the Greek word "barys" which means "heavy". Barium’s melting point is at 725.0 °C (998.15 K, 1337.0 °F) and its boiling point is at 1140.0 °C (1413.15 K, 2084.0 °F).

Top 8 interesting facts about Barium

  1. Barium is a soft silvery metal.
  2. Barium is a very reactive element.
  3. Barium is never found freely in nature.
  4. Barium has a very good electrical conductivity.
  5. The most common minerals of barium are barite and witherite.
  6. Barium is used to scavenge air in vacuum tubes, in high-temperature superconductors and electro ceramics, in steel to reduce the size of carbon grains, in fireworks, oil industry, as an x-ray agent, etc.
  7. Barium has seven stable isotopes (50 isotopes are known).
  8. China, India, Morocco, and the USA are the main producers of barite.

Back to index