long-lived isotope

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• Long-lived fission product — Long lived fission products are radioactive materials with a long half life (more than 200,000 years) produced by nuclear fission. Contents 1 Evolution of radioactivity in nuclear waste 1.1 Short term 1.2 Medium lived fission products …   Wikipedia

• Isotope-ratio mass spectrometry — Isotope ratio mass spectrometer with gas bench in foreground Acronym IRMS Classification mass spectrometry Other techniques …   Wikipedia

• Isotope — This article is about the atomic variants of chemical elements. For the British jazz fusion band, see Isotope (band). Isotopes redirects here. For the minor league baseball team, see Albuquerque Isotopes. Isotopes are variants of atoms of a… …   Wikipedia

• isotope — isotopic /uy seuh top ik/, adj. isotopically, adv. /uy seuh tohp /, n. Chem. any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in… …   Universalium

• Isotope ratio mass spectrometry — Infobox chemical analysis name = Isotope ratio mass spectrometry caption =Isotope ratio mass spectrometer with gas bench in foreground acronym = IRMS classification =mass spectrometry analytes = manufacturers = related = Accelerator mass… …   Wikipedia

• Stable isotope — Graph of isotopes/nuclides by type of decay. Orange and blue nuclides are unstable, with the black squares between these regions representing stable nuclides. The unbroken line passing below many of the nuclides represents the theoretical… …   Wikipedia

• Actinide — The atomic bomb dropped on Nagasaki had a plutonium charge.[1] The actinide or actinoid (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium thro …   Wikipedia

• Delayed nuclear radiation — is a form of nuclear decay. When an isotope decays into a very short lived isotope and then decays again to a relatively long lived isotope, the products of the second decay are delayed. The short lived isotope is usually a meta stable nuclear… …   Wikipedia

• Zinc — This article is about the metallic element. For other uses, see Zinc (disambiguation). copper ← zinc → gallium ↑ Zn ↓ Cd …   Wikipedia

• Mononuclidic element — Not to be confused with the 26 monoisotopic elements defined as having only one stable nuclide. Set A is the 26 monoisotopic elements and B the 22 mononuclidic elements. The intersection consists of 19 elements that are both, but each set… …   Wikipedia

• protactinium — /proh tak tin ee euhm/, n. Chem. a radioactive, metallic element. Symbol: Pa; at. no.: 91. Also, protoactinium. [1915 20; PROT + ACTINIUM] * * * ▪ chemical element  (Pa),    radioactive chemical element of the actinoid series of the periodic… …   Universalium