• Name: Technetium

  • Symbol: Tc

  • Number of Energy Levels: 5

  • Electrons on the outer energy level: 1

  • Atomic Number: 43

  • Atomic Mass: 98 Amu

  • Protons / Electrons: 43

  • Neutrons: 55

  • Density: 11.5 g/cm3

  • Classification: Transition Metal

Top 16 interesting facts about Technetium

  • Technetium was discovered in 1937 by Carlo Perrier. Technetium's name derives from the Greek word "technetos" which means "artificial".
  • Technetium's melting point is at 2200.0 C (2473.15 K, 3992.0 F) and its boiling point is at 2200.0 C (2473.15 K, 3992.0 F).
  • Technetium is produced synthetically, it is man-made.
  • Very small amounts of technetium exist in nature as a fission product in uranium ores.
  • Technetium doesn't have any stable isotopes.
  • Technetium is a silvery-gray metal.
  • Technetium is a radioactive metal, byproduct of uranium fission.
  • 99-Tc is used in nuclear medicine for different diagnostic tests.
  • Technetium with atomic number 43 is the lowest-numbered element in the periodic table that is exclusively radioactive.
  • The most stable radioactive isotopes of technetium are: 98-Tc (4.2 million years), 97-Tc (2.6 million years), and 99-Tc (211.000 million years).
  • Almost all technetium is produced by the nuclear fission of uranium-235 and plutonium-239.
  • Two thirds of the world's supply of technetium comes from the National Research Universal Reactor (Ontario, Canada) and High Flux Reactor (Petten, Netherlands).
  • Technetium-99 is a major concern for long-term disposal of radioactive waste.
  • Technetium might be use in the future in nano-scale nuclear batteries.
  • Technetium has no biological role and it is not found in human body.
  • All isotopes of technetium must by handled carefully.