Skip to main

Choisissez le vocabulaire dans lequel chercher

Langue des données

Concept information

Terme préférentiel

Radon  

Type

  • Entity

Définition

  • [Wikipedia] Radon is a chemical element with the symbol Rn and atomic number 86. It is a radioactive, colorless, odorless, tasteless noble gas. It occurs naturally in minute quantities as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into lead and various other short-lived radioactive elements. Radon itself is the immediate decay product of radium. Its most stable isotope, 222Rn, has a half-life of only 3.8 days, making it one of the rarest elements. Since thorium and uranium are two of the most common radioactive elements on Earth, while also having three isotopes with half-lives on the order of several billion years, radon will be present on Earth long into the future despite its short half-life. The decay of radon produces many other short-lived nuclides, known as radon daughters, ending at stable isotopes of lead.

Concept générique

Variante

  • Rn

URI

https://w3id.org/ozcar-theia/c_62bd40e8

Télécharger ce concept :

RDF/XML TURTLE JSON-LD Date de création 07/02/2022, dernière modification le 22/01/2024