experimental
Entry: Lanthanum
URI: https://terra-vocabulary.org/ncl/DataTerraRepositoryFairIncubator/motsClefs/c_9a506e8c
[Wikipedia] Lanthanum is a chemical element with the symbol La and atomic number 57. It is a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. Lanthanum is traditionally counted among the rare earth elements. The usual oxidation state is +3. Lanthanum has no biological role in humans but is essential to some bacteria. It is not particularly toxic to humans but does show some antimicrobial activity.
Core metadata
| is a | feature of interest | Concept |
| changed on | 17 Nov 2023 08:31:48.977 |
| submitted by | Hélène Bressan |
| accepted on | 22 May 2023 15:19:00.759 |
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| date accepted |
22 May 2023 15:19:00.759
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| date submitted |
22 May 2023 13:21:09.642
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| definition |
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| description |
[Wikipedia] Lanthanum is a chemical element with the symbol La and atomic number 57. It is a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. Lanthanum is traditionally counted among the rare earth elements. The usual oxidation state is +3. Lanthanum has no biological role in humans but is essential to some bacteria. It is not particularly toxic to humans but does show some antimicrobial activity.
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Concept
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| modified |
17 Nov 2023 08:31:48.977
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| notation |
c_9a506e8c
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| register |
mots clefs
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| status |
status experimental
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register item
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Definition
| alt label |
La
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| description |
[Wikipedia] Lanthanum is a chemical element with the symbol La and atomic number 57. It is a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. Lanthanum is traditionally counted among the rare earth elements. The usual oxidation state is +3. Lanthanum has no biological role in humans but is essential to some bacteria. It is not particularly toxic to humans but does show some antimicrobial activity.
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| exact match |
c 9a506e8c
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| in scheme |
Vocabulaire des mots clefs
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| same as |
c 9a506e8c
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| top concept of |
Vocabulaire des mots clefs
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| type |
feature of interest
| Concept
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| was attributed to |
Pole THEIA
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