Tuesday, February 05, 2013


  • Radium is a radioactive element that occurs naturally in very low concentrations (about one part per trillion) in the earth’s crust.
  • Radium in its pure form is a silvery-white heavy metal that oxidizes immediately upon exposure to air
  • Radium was first discovered in 1898 by Marie and Pierre Curie, and it served as the basis for identifying the activity of various radionuclide.
  • Radium-226 is a radioactive decay product in the uranium-238 decay series and is the precursor of radon-222.

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