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Preferred term

Technetium  

Type

  • Topical Descriptor

Entry terms

  • 99m, Technetium
  • Technetium 99m

Note

  • note entry term: many specific Technetium Tc 99m terms are available

Scope note

  • The first artificially produced element and a radioactive fission product of URANIUM. Technetium has the atomic symbol Tc, and atomic number 43. All technetium isotopes are radioactive. Technetium 99m (m=metastable) which is the decay product of Molybdenum 99, has a half-life of about 6 hours and is used diagnostically as a radioactive imaging agent. Technetium 99 which is a decay product of technetium 99m, has a half-life of 210,000 years.

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URI

http://www.yso.fi/onto/mesh/D013667

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