experimental

Entrée : Boron - montrer la version 4

URI: https://terra-vocabulary.org/ncl/DataTerraRepositoryFairIncubator/motsClefs/c_5e2a3c98

[Wikipedia] Boron is a chemical element with the symbol B and atomic number 5. In its crystalline form it is a brittle, dark, lustrous metalloid; in its amorphous form it is a brown powder. As the lightest element of the boron group it has three valence electrons for forming covalent bonds, resulting many compounds such as boric acid, the mineral borax, and the ultra-hard crystal boron carbide.

Métadonnées principales

est un feature of interest | Concept
modifié le 17 Nov 2023 08:31:48.883
soumis parHélène Bressan
accepté le 22 May 2023 15:05:37.031

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date accepted 22 May 2023 15:05:37.031
date submitted 22 May 2023 13:21:09.539
definition
entity Boron
source graph graph

description [Wikipedia] Boron is a chemical element with the symbol B and atomic number 5. In its crystalline form it is a brittle, dark, lustrous metalloid; in its amorphous form it is a brown powder. As the lightest element of the boron group it has three valence electrons for forming covalent bonds, resulting many compounds such as boric acid, the mineral borax, and the ultra-hard crystal boron carbide.
item class feature of interest | Concept
label
fr Boron
en Boron
modified 17 Nov 2023 08:31:48.883
notation c_5e2a3c98
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

alt label B
description [Wikipedia] Boron is a chemical element with the symbol B and atomic number 5. In its crystalline form it is a brittle, dark, lustrous metalloid; in its amorphous form it is a brown powder. As the lightest element of the boron group it has three valence electrons for forming covalent bonds, resulting many compounds such as boric acid, the mineral borax, and the ultra-hard crystal boron carbide.
exact match c 5e2a3c98 | 965 | 20802
in scheme Vocabulaire des mots clefs
label
fr Boron
en Boron
pref label
fr Boron
en Boron
same as c 5e2a3c98 | 965 | 20802
top concept of Vocabulaire des mots clefs
type feature of interest | Concept
was attributed to Pôle THEIA