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thorium (Q1115)

From Wikidata
chemical element with symbol Th and atomic number 90
  • 90Th
  • element 90
  • Th
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Language Label Description Also known as
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  • Th
English
thorium
chemical element with symbol Th and atomic number 90
  • 90Th
  • element 90
  • Th

Statements

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Thorium sample 0.1g.jpg
1,000 × 667; 119 KB
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1828
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Th
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[Th]
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90
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[Rn] 7s² 6d²
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1
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0.94 ångström
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1.05 ångström
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1.13 ångström
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1.21 ångström
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6.3067±0.00025 electronvolt
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NIST Atomic Spectra Database, Ionization Energies (English)
18 September 2026
12.1±0.2 electronvolt
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NIST Atomic Spectra Database, Ionization Energies (English)
18 September 2026
4
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3
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2
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1
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190.17 joule per mole kelvin
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51.8 joule per mole kelvin
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2,020.0 kelvin
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3
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11.54 micrometre per metre kelvin
20 degree Celsius
232.0377±0.0004 dalton
At Tokyo 2024 151.jpg
4,032 × 3,024; 13.29 MB
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Thorium
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180 picometre
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206 picometre
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3 October 2026

Identifiers

תוריום (Hebrew)
الثوريوم (Arabic)
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28 October 2019
THORIUM, ELEMENTAL (English)
10 May 2021
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Th | thorium | atomic number 90
a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands (English)
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Th, thorium, atomic number 90
a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands (English)
1 reference
torium (Swedish)
thorium (English)
torium (Northern Sami)
 
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