technetium : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: technetium	by the DICT Development Group
2 results for technetium
From WordNet (r) 3.0 (2006) [wn]:
technetium n a crystalline metallic element not found in nature; occurs as one of the fission products of uranium Synonym(s): technetium, Tc, atomic number 43
From The Elements (22Oct97) [elements]:
technetium 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 2.610^6 years. Sixteen isotopes are known. Organic technetium* compounds are used in bone imaging. Chemical properties are intermediate between rhenium and manganese.