isotope specific activity

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• specific activity — /spəˌsɪfɪk ækˈtɪvəti/ (say spuh.sifik ak tivuhtee) noun 1. Physics the activity per unit mass of a pure radioactive isotope. 2. Physics the activity of a radioactive isotope in a material per unit mass of that material. 3. Biochemistry the… …  

• 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

• Nuclear chemistry — is the subfield of chemistry dealing with radioactivity, nuclear processes and nuclear properties. It is the chemistry of radioactive elements such as the actinides, radium and radon together with the chemistry associated with equipment (such as… …   Wikipedia

• Environmental radioactivity — is produced by radioactive materials in the human environment. While some radioisotopes, such as strontium 90 (90Sr) and technetium 99 (99Tc), are only found on Earth as a result of human activity, and some, like potassium 40 (40K), are only… …   Wikipedia

• Protactinium — thorium ← protactinium → uranium Pr ↑ Pa ↓ …   Wikipedia

• Radioactive decay — For particle decay in a more general context, see Particle decay. For more information on hazards of various kinds of radiation from decay, see Ionizing radiation. Radioactive redirects here. For other uses, see Radioactive (disambiguation).… …   Wikipedia

• radioactivity — /ray dee oh ak tiv i tee/, n. Physics, Chem. the phenomenon, exhibited by and being a property of certain elements, of spontaneously emitting radiation resulting from changes in the nuclei of atoms of the element. Also called activity. [1895… …   Universalium

• List of crimes involving radioactive substances — This is a list of criminal (or arguably, allegedly, or potentially criminal) acts involving radioactive substances. Inclusion in this list does not necessarily imply that anyone involved was guilty of a crime. Contents 1 Use of alpha emitters for …   Wikipedia

• Rubidium — krypton ← rubidium → strontium K ↑ Rb ↓ …   Wikipedia

• Uranium-236 — Infobox isotope background = #fc6 text color = isotope name = Uranium 236 isotope filename = alternate names = mass number =236 symbol =U num neutrons =144 num protons =92 abundance =< 10^ 10 halflife = 2.348 x10^7 years error halflife = decay… …   Wikipedia

• Charles Philippe Leblond — Charles Philippe Leblond, Canadian biologist Born February 5, 1910 Lille, France …   Wikipedia