'technetium' definitions:
Definition of 'technetium'
(from WordNet)
noun
A crystalline metallic element not found in nature; occurs as one of the fission products of uranium [syn: technetium, Tc, atomic number 43]
Definition of 'technetium'
From: Elements
- Symbol: Tc
- Atomic number: 43
- Atomic weight: (98)
- Radioactive metallic transition element. Can be detected in some stars and the fission products of uranium. First made by Perrier and Segre by bombarding molybdenum with deutrons, giving them Tc-97. Tc-99 is the most stable isotope with a half-life of 2.6*10^6 years. Sixteen isotopes are known. Organic technetium compounds are used in bone imaging. Chemical properties are intermediate between rhenium and manganese.