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Chemistry


Gallium

Name: Gallium
Symbol: Ga
Number of Energy Levels: 4
Electrons on the outer energy level: 3
Atomic number: 31
Atomic Mass: 69.723 Amu (Atomic Mass Units)
Protons/Electrons: 31
Neutrons: 39
Density: 5.907 g/cm3
Classification: Other Metals

Gallium | Chemical elements

Gallium was discovered in 1875 by Paul Emile Lecoq de Boisbaudran. Its name drives from Latin word "Gallia" which was the old name of France. Gallium melting point is at 29.78 °C (302.93 K, 85.604004 °F) and its boiling point is at 2403.0 °C (2676.15 K, 4357.4 °F).

Top 10 interesting facts and information about gallium

  1. Gallium can not be found freely in nature but in zinc ores and in bauxite.
  2. Gallium melts at room temperature (below 30 centigrade).
  3. Mercury, cesium, rubidium, and francium also have a melting point similar to the gallium’s melting point.
  4. Almost all gallium is used in electronics industry as microwave and infrared circuits, and also in production of high-temperature thermometers.
  5. Gallium is also used in nuclear bombs.
  6. At room temperature gallium doesn’t react with water or air due to the formation of an oxide layer.
  7. Gallium is a byproduct of aluminum and zinc production.
  8. Gallium has two stable isotopes: 69-Ga and 71-Ga.
  9. The difference between the melting point and boiling point of gallium is 2373 centigrade.
  10. Gallium, like water, expands at its freezes.

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