Thorium
Thorium is a weakly radioactive metallic chemical element with the symbol Th and atomic number 90. Thorium is silvery and tarnishes black when it is exposed to air, forming thorium dioxide; it is moderately soft, malleable, and has a high melting point. Thorium is an electropositive actinide whose chemistry is dominated by the +4 oxidation state; it is quite reactive and can ignite in air when finely divided.
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1828 in science19561956 in the United States2011 in science4-1000A9090 (number)Abenakiite-(Ce)Abundance of elements in Earth's crustAbundance of the chemical elementsAbundances of the elements (data page)Accelerator-driven subcritical reactorActinideActinide chemistryActinides in the environmentActiniumActinoceneAda HitchinsAdvanced heavy-water reactorAeschynite-(Ce)Aeschynite-(Nd)Aeschynite-(Y)Age of EarthAlba MonsAlkali metalAlkaline earth metalAllaniteAlpha decayAlpha particleAlpha strike (engineering)Alsos MissionAlternative fuelAlthupiteAlvin M. WeinbergAlvin RadkowskyAmericium
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Thorium
Thorium is a weakly radioactive metallic chemical element with the symbol Th and atomic number 90. Thorium is silvery and tarnishes black when it is exposed to air, forming thorium dioxide; it is moderately soft, malleable, and has a high melting point. Thorium is an electropositive actinide whose chemistry is dominated by the +4 oxidation state; it is quite reactive and can ignite in air when finely divided.
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El tori és l'element químic de ...... ani com a combustible nuclear.
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El torio es un elemento químic ...... ía está en fase de desarrollo.
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Il torio è l'elemento chimico ...... l torio sono stati realizzati.
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Le thorium est un élément chim ...... d Nazare dans les années 1950.
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Miotal bog insínte liathlonrac ...... fearr ag astú leictreon uathu.
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Thorium (chemická značka Th) j ...... palivem v jaderné energetice.
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Thorium (nach dem germanischen ...... tinoide (7. Periode, f-Block).
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Thorium is a weakly radioactiv ...... t engines, and in light bulbs.
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Thorium is een scheikundig ele ...... Het is een zilverwit actinide.
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Tor (Th, łac. thorium) – pierw ...... od imienia jednego z , Thora.
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El tori és l'element químic de ...... ani com a combustible nuclear.
@ca
El torio es un elemento químic ...... nta, arde y emite luz blanca.
@es
Il torio è l'elemento chimico ...... r, il dio norvegese del tuono.
@it
Le thorium est un élément chim ...... or, dieu nordique du tonnerre.
@fr
Miotal bog insínte liathlonrac ...... adh á n-eamhnú san imoibreoir.
@ga
Thorium (chemická značka Th) j ...... palivem v jaderné energetice.
@cs
Thorium (nach dem germanischen ...... tinoide (7. Periode, f-Block).
@de
Thorium is a weakly radioactiv ...... te in air when finely divided.
@en
Thorium is een scheikundig ele ...... Het is een zilverwit actinide.
@nl
Tor (Th, łac. thorium) – pierw ...... od imienia jednego z , Thora.
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Thorium
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Thorium
@de
Thorium
@en
Thorium
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Thorium
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Tor (pierwiastek)
@pl
Tori
@ca
Torio
@eo
Torio
@es
Torio
@eu