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Name: Zirconium
Symbol: Zr
Number of Energy Levels: 5
Electrons on the outer energy level: 2
Atomic number: 40
Atomic Mass: 91.224 Amu (Atomic Mass Units)
Protons/Electrons: 40
Neutrons: 51
Density: 6.49 g/cm3
Classification: Transition Metal

Zirconium | Chemical elements

Zirconium was discovered in 1789 by Martin Klaproth. Zirconium was named after the name of the mineral "zircon" (zargun – Persian word that means "gold-colored"), the most important source of zirconium. Zirconium’s melting point is at 1852.0 °C (2125.15 K, 3365.6 °F) and its boiling point is at 4377.0 °C (4650.15 K, 7910.6 °F).

Top 8 interesting facts about Zirconium

  1. Zirconium is lustrous gray strong transition metal.
  2. Zirconium is highly flammable when it is in powder form.
  3. Zirconium is used as a refractory and opacifier element and sometimes it is used in different alloys for its strong resistance to corrosion.
  4. There are five naturally occurring isotopes, 90-Zr (the most common zirconium isotope), 91-Zr, 92-Zr, 94-Zr, and 96-Zr, but 96-Zr is not a stable isotope.
  5. There are 28 artificial isotopes of zirconium.
  6. Zirconium is mainly extracted from the mineral zircon which is found primarily in Australia, Brazil, India, the USA, South Africa, and Russia. Australia and South Africa are the biggest producers of zirconium.
  7. About 900,000 tones of zircon ores are produced annually but just a small fraction is converted to zirconium.
  8. Zirconium has no known biological role and it is not considered an industrial health hazard.

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