experimental

Entrée : Cerium - montrer la version 4

URI: https://terra-vocabulary.org/ncl/DataTerraRepositoryFairIncubator/motsClefs/c_7fc9623c

[Wikipedia] Cerium is a chemical element with the symbol Ce and atomic number 58. Cerium is a soft, ductile, and silvery-white metal that tarnishes when exposed to air, and it is soft enough to be cut with a steel kitchen knife. Cerium is the second element in the lanthanide series, and while it often shows the +3 oxidation state characteristic of the series, it also has a stable +4 state that does not oxidize water. It is also considered one of the rare-earth elements. Cerium has no biological role in humans and is not very toxic.

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est un feature of interest | Concept
modifié le 17 Nov 2023 08:31:48.367
soumis parHélène Bressan
accepté le 22 May 2023 14:57:51.969

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date accepted 22 May 2023 14:57:51.969
date submitted 22 May 2023 13:21:09.431
definition
entity Cerium
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description [Wikipedia] Cerium is a chemical element with the symbol Ce and atomic number 58. Cerium is a soft, ductile, and silvery-white metal that tarnishes when exposed to air, and it is soft enough to be cut with a steel kitchen knife. Cerium is the second element in the lanthanide series, and while it often shows the +3 oxidation state characteristic of the series, it also has a stable +4 state that does not oxidize water. It is also considered one of the rare-earth elements. Cerium has no biological role in humans and is not very toxic.
item class Concept | feature of interest
label
fr Cerium
en Cerium
modified 17 Nov 2023 08:31:48.367
notation c_7fc9623c
register mots clefs
status status experimental
submitter
account name h.bressan@brgm.fr
name Hélène Bressan

type register item
version info 4
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Définition

description [Wikipedia] Cerium is a chemical element with the symbol Ce and atomic number 58. Cerium is a soft, ductile, and silvery-white metal that tarnishes when exposed to air, and it is soft enough to be cut with a steel kitchen knife. Cerium is the second element in the lanthanide series, and while it often shows the +3 oxidation state characteristic of the series, it also has a stable +4 state that does not oxidize water. It is also considered one of the rare-earth elements. Cerium has no biological role in humans and is not very toxic.
exact match c 7fc9623c
in scheme Vocabulaire des mots clefs
label
fr Cerium
en Cerium
pref label
fr Cerium
en Cerium
same as c 7fc9623c
top concept of Vocabulaire des mots clefs
type feature of interest | Concept
was attributed to Pôle THEIA