Any of several species of the same chemical element with different masses whose nuclei are unstable and dissipate excess energy by spontaneously emitting radiation in the form of alpha, beta, or gamma rays.

Object Properties

URI Type Comment
unece:activityLevelMeasure unece:MeasureType A measure of the activity level of this specified radioactive isotope.
unece:name xsd:string A name, expressed as text, for this specified radioactive isotope, such as C14.
unece:note xsd:string A note, expressed as text, for this specified radioactive isotope.
unece:specifiedRadionuclide unece:Radionuclide The radionuclide details specified for this radioactive isotope.

Referenced by

URI Comment
unece:applicableRadioactiveIsotope An isotope applicable to this radioactive material.