actinium emanation
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actinium emanation — noun : actinon * * * Chem. actinon. * * * actinium emanation, = actinon. (Cf. ↑actinon) … Useful english dictionary
émanation — [ emanasjɔ̃ ] n. f. • 1579; lat. ecclés. emanatio ♦ Action d émaner; la chose qui émane. 1 ♦ Théol. Manière dont le Fils procède du Père, et le Saint Esprit du Père et du Fils. ⇒ procession. ♢ Philos. Processus par lequel les êtres et le monde… … Encyclopédie Universelle
emanation — 1. Any substance that flows out or is emitted from a source or origin. 2. The radiation from a radioactive element. [L. e mano, pp. atus, to flow out] actinium e. radon 219. See emanon. radium e. radon 222. See emanon … Medical dictionary
Radon — This article is about the chemical element. For other uses, see Radon (disambiguation). astatine ← radon → francium Xe ↑ Rn ↓ Uuo … Wikipedia
Decay chain — In nuclear science, the decay chain refers to the radioactive decay of different discrete radioactive decay products as a chained series of transformations. Most radioactive elements do not decay directly to a stable state, but rather undergo a… … Wikipedia
Isotopes of radon — There are thirty four known isotopes of radon (Rn). The most stable isotope is 222Rn, which is a decay product (daughter product) of 226Ra, has a half life of 3.823 days and emits alpha particles. 220Rn is a natural decay product of thorium and… … Wikipedia
Radon — Radongas * * * Ra|don 〈a. [ ′ ] n.; s; unz.; chem. 〉 chem. Element, radioaktives Edelgas, Ordnungszahl 86; Sy 〈veraltet〉 Niton [zu lat. radius „Strahl“] * * * Ra|don [↑ Radium u. ↑ on (4)], das; s; Symbol … Universal-Lexikon
actinon — /ak teuh non /, n. Chem. a chemically inert, gaseous, short lived isotope of radon that is a member of the actinium series. Symbol: An; at. no.: 86; at. wt.: 219. Also called actinium emanation. [1925 30; < NL; see ACTINIUM, ON2] * * * … Universalium
Actinon — Ac|ti|non [↑ Actinium u. ↑ on (4)], das; s; Symbol: An: ↑ Radon. * * * Actinon das, s, Kurzform für Actinium|emanation, veraltete … Universal-Lexikon
ac|ti|non — «AK tuh non», noun. an isotope of radon, formed by the decay of actinium; actinium emanation. ╂[< actinium] … Useful english dictionary
