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Entrée : Radon - montrer la version 4

URI: https://terra-vocabulary.org/ncl/DataTerraRepositoryFairIncubator/motsClefs/c_62bd40e8

[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.

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est un feature of interest | Concept
modifié le 17 Nov 2023 08:31:48.558
soumis parHélène Bressan
accepté le 22 May 2023 15:23:12.962

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date accepted 22 May 2023 15:23:12.962
date submitted 22 May 2023 13:21:09.681
definition
entity Radon
source graph graph

description [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.
item class Concept | feature of interest
label
fr Radon
en Radon
modified 17 Nov 2023 08:31:48.558
notation c_62bd40e8
register mots clefs
status status experimental
submitter
account name h.bressan@brgm.fr
name Hélène Bressan

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Définition

alt label Rn
description [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.
exact match c 62bd40e8 | 6935
in scheme Vocabulaire des mots clefs
label
fr Radon
en Radon
pref label
fr Radon
en Radon
same as c 62bd40e8 | 6935
top concept of Vocabulaire des mots clefs
type feature of interest | Concept
was attributed to Pôle THEIA