Radioactive tracer — A radioactive tracer, also called a radioactive label, is a substance containing a radioisotope(which is an isotope that has an unstable nucleus and that stabalizes itself by spontaneously emitting energy and particles). Tracers can be used to… … Wikipedia
radioactive isotope — ▪ chemistry also called radioisotope any of several species of the same chemical element with different masses whose nuclei are unstable and dissipate excess energy by spontaneously emitting radiation in the form of alpha, beta, and gamma rays … Universalium
Radioactive — Emitting energy waves due to decaying atomic nuclei. Radioactive substances are used in medicine as tracers for diagnosis, and in treatment to kill cancerous cells. * * * Possessing radioactivity. SYN: radio (2). * * * ra·dio·ac·tive .rād ē ō ak… … Medical dictionary
tracers — Materials, such as chemicals, dyes, radioactive salts, and light insoluble solids introduced into underground waters to determine points of egress of the water and its velocity [10] … Lexicon of Cave and Karst Terminology
isotopic tracers — žymėtieji atomai statusas T sritis chemija apibrėžtis Radioaktyvūs, kartais ir stabilūs izotopai, vartojami medžiagoms žymėti. atitikmenys: angl. isotopic tracers; labelled atoms; radioactive tracers; radioisotope tracers; tagged atoms; tracer… … Chemijos terminų aiškinamasis žodynas
radioisotope tracers — žymėtieji atomai statusas T sritis chemija apibrėžtis Radioaktyvūs, kartais ir stabilūs izotopai, vartojami medžiagoms žymėti. atitikmenys: angl. isotopic tracers; labelled atoms; radioactive tracers; radioisotope tracers; tagged atoms; tracer… … Chemijos terminų aiškinamasis žodynas
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
HEVESY, GEORGE CHARLES DE — (1885–1966), chemist, isotopes pioneer, and Nobel Prize winner. Hevesy was born in Budapest and studied there and in Berlin. After obtaining his doctorate at Freiburg he worked with Lorenz at the Technische Hochschule in Zurich, with haber at… … Encyclopedia of Judaism
Hevesy , George Charles von — (1885–1966) Hungarian–Swedish chemist Hevesy came from a family of wealthy industrialists in Budapest, the Hungarian capital. He was educated in Budapest and at the University of Freiburg where he obtained his doctorate in 1908. He then worked in … Scientists
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