experimental
Entrée : Samarium
URI: https://terra-vocabulary.org/ncl/DataTerraRepositoryFairIncubator/motsClefs/c_7d2206b8
[Wikipedia] Samarium is a chemical element with the symbol Sm and atomic number 62. It is a moderately hard silvery metal that slowly oxidizes in air. Being a typical member of the lanthanide series, samarium usually assumes the oxidation state +3. Compounds of samarium(II) are also known, most notably the monoxide SmO, monochalcogenides SmS, SmSe and SmTe, as well as samarium(II) iodide. The last compound is a common reducing agent in chemical synthesis. Samarium has no significant biological role but is only slightly toxic.
Métadonnées principales
| est un | Concept | feature of interest |
| modifié le | 17 Nov 2023 08:31:48.574 |
| soumis par | Hélène Bressan |
| accepté le | 22 May 2023 14:57:48.850 |
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| date accepted |
22 May 2023 14:57:48.850
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| date submitted |
22 May 2023 13:21:09.430
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| definition |
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| description |
[Wikipedia] Samarium is a chemical element with the symbol Sm and atomic number 62. It is a moderately hard silvery metal that slowly oxidizes in air. Being a typical member of the lanthanide series, samarium usually assumes the oxidation state +3. Compounds of samarium(II) are also known, most notably the monoxide SmO, monochalcogenides SmS, SmSe and SmTe, as well as samarium(II) iodide. The last compound is a common reducing agent in chemical synthesis. Samarium has no significant biological role but is only slightly toxic.
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Concept
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| modified |
17 Nov 2023 08:31:48.574
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| notation |
c_7d2206b8
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mots clefs
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| status |
status experimental
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register item
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4
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Définition
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Sm
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| description |
[Wikipedia] Samarium is a chemical element with the symbol Sm and atomic number 62. It is a moderately hard silvery metal that slowly oxidizes in air. Being a typical member of the lanthanide series, samarium usually assumes the oxidation state +3. Compounds of samarium(II) are also known, most notably the monoxide SmO, monochalcogenides SmS, SmSe and SmTe, as well as samarium(II) iodide. The last compound is a common reducing agent in chemical synthesis. Samarium has no significant biological role but is only slightly toxic.
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c 7d2206b8
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| in scheme |
Vocabulaire des mots clefs
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| same as |
c 7d2206b8
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| top concept of |
Vocabulaire des mots clefs
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Concept
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| was attributed to |
Pôle THEIA
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