TERMIUM Plus®

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ACTINOURANIO [1 record]

Record 1 - external organization data 2012-04-25

English

Subject field(s)
  • Chemical Elements and Compounds
  • Atomic Physics
  • Compartment - Canadian Nuclear Safety Commission
Universal entry(ies)
235U
symbol, see observation
DEF

A light isotope of uranium of mass number 235 that is physically separable from natural uranium or is formed from plutonium by emission of a helium nucleus, that as the parent of the actinium series undergoes very slow radioactive disintegration, and that when bombarded with slow neutrons undergoes rapid fission into smaller atoms (as strontium and xenon or barium and krypton) together with much radiation and atomic energy, and that is used in power plants and atom bombs.

OBS

The number 235, in the symbol (235U) for the isotope 235 of uranium, is a superscript.

OBS

uranium-235;235U: Term and symbol recommended by the International Union of Pure and Applied Chemistry (IUPAC).

French

Domaine(s)
  • Éléments et composés chimiques
  • Physique atomique
  • Tiroir - Commission canadienne de sûreté nucléaire
Entrée(s) universelle(s)
235U
symbol, see observation
DEF

Isotope de l'uranium, dont la proportion dans l'uranium naturel est de 0,71 %.

OBS

C'est une matière fissile qui constitue le combustible nucléaire le plus courant. L'augmentation de la proportion en uranium 235 (enrichissement) se fait par diverses méthodes dites de séparation des isotopes. Émetteur alpha de 4,35 MeV (84 %) et diverses énergies voisines (16 %) de période 7,13 X 108 ans, il est le père de la famille de l'actinium. Ancienne appellation : Actino-uranium.

OBS

actino-uranium : nom donné parfois à l'uranium 235, dont l'actinium dérive par filiation radioactive.

OBS

235U : le chiffre 235 est en exposant.

OBS

uranium-235;235U : terme et symbole recommandés par l'Union internationale de chimie pure et appliquée (UICPA).

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Física atómica
  • Compartimiento - Comisión Canadiense de Seguridad Nuclear
Entrada(s) universal(es)
235U
symbol, see observation
OBS

Fórmula química:235U

OBS

actinouranio: Nombre dado al isótopo del uranio de número atómico 92 y número de masa 235, que es el primer radioelemento de la serie del actinio.

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