ESL Saigon logo



Name: Germanium
Symbol: Ge
Number of Energy Levels: 4
Electrons on the outer energy level: 4
Atomic number: 32
Atomic Mass: 72.61 Amu (Atomic Mass Units)
Protons/Electrons: 32
Neutrons: 41
Density: 5.323 g/cm3
Classification: Metalloid

Germanium | Chemical elements

Germanium was discovered in 1886 by Clemens Winkler. Its name drives from Latin word "Germania" which means "Germany". Germanium’s melting point is at 937.4 °C (1210.55 K, 1719.3201 °F) and its boiling point is at 2830.0 °C (3103.15 K, 5126.0 °F).

Top 9 interesting facts and information about germanium

  1. Germanium is a silvery-white element.
  2. Germanium was originally named Neptunium.
  3. Germanium is too reactive therefore it can’t be found naturally on Earth but just in compounds.
  4. Germanium, like water, expands when it solidifies.
  5. Germanium has five naturally occurring isotopes: 70-Ge, 72-Ge, 73-Ge, 74-Ge, and 76-Ge.
  6. Germanium is extracted mainly from sphalerite which is the primary ore of zinc.
  7. Germanium is used in fiber-optics, infrared optics, solar cell, nano-wires, semiconductors, transistors, and many other electronics.
  8. Germanium is not an essential element for living organisms.
  9. Germanium is mostly produced in China.

Back to index