experimental

Entrée : Uranium - montrer la version 4

URI: https://terra-vocabulary.org/ncl/DataTerraRepositoryFairIncubator/motsClefs/c_f2fe0f0f

[Wikipedia] Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite.

Métadonnées principales

est un feature of interest | Concept
modifié le 17 Nov 2023 08:31:48.857
soumis parHélène Bressan
accepté le 22 May 2023 14:59:55.447

Download formats available

Formats de téléchargement disponibles

RDF ttl avec les metadonnées
RDF/XML avec les metadonnées
JSON-LD avec les metadonnées
CSV avec les metadonnées

Toutes les propriétés des métadonnées

date accepted 22 May 2023 14:59:55.447
date submitted 22 May 2023 13:21:09.471
definition
entity Uranium
source graph graph

description [Wikipedia] Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite.
item class Concept | feature of interest
label
fr Uranium
en Uranium
modified 17 Nov 2023 08:31:48.857
notation c_f2fe0f0f
register mots clefs
status status experimental
submitter
account name h.bressan@brgm.fr
name Hélène Bressan

type register item
version info 4
Chargement...
sélectionner l'onglet pour développer

Définition

alt label U
description [Wikipedia] Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite.
exact match c f2fe0f0f | 8791
in scheme Vocabulaire des mots clefs
label
fr Uranium
en Uranium
pref label
fr Uranium
en Uranium
same as c f2fe0f0f | 8791
top concept of Vocabulaire des mots clefs
type feature of interest | Concept
was attributed to Pôle THEIA