argon (Q696)

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chemical element with symbol Ar and atomic number 18; rare gas
  • Ar
  • element 18
  • 18Ar
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Language Label Description Also known as
English
argon
chemical element with symbol Ar and atomic number 18; rare gas
  • Ar
  • element 18
  • 18Ar

Statements

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Argon ice 1.jpg
1,829 × 1,632; 570 KB
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39.95±0.16 dalton
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Standard atomic weights of the elements 2021 (IUPAC Technical Report) (English)
6 May 2022
1894
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18
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1s² 2s² 2p⁶ 3s² 3p⁶
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[Ne] 3s² 3p⁶
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−189.34 degree Celsius
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−185.85 degree Celsius
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22.7 micropascal second
26.85 degree Celsius
1 standard atmosphere
813±1 metre per second
−185.9±0.1 degree Celsius
Argon
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Argon
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Identifiers

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1 reference
28 October 2019
Argon, Elemental (English)
10 May 2021
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28 December 2019
ARGON (English)
CAS no.: 7440-37-1 (English)
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14653098-n
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