(Q560)

English

helium

chemical element with symbol He and atomic number 2

  • He
  • element 2
  • Helium

Statements

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Helium discharge tube.jpg
3,008 × 2,008; 1.29 MB
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4.5
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0.1785 kilogram per cubic metre
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no value
1 standard atmosphere
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0.95 kelvin
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−272.05 degree Celsius
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−458 degree Fahrenheit
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−452.070 degree Fahrenheit
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−268.9 degree Celsius
1 standard atmosphere
180±1 metre per second
−268.9±0.1 degree Celsius
965±1 metre per second
0±1 degree Celsius
1.000036
0 degree Celsius
1 standard atmosphere
589.29 nanometre
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Helium
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Helium
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Identifiers

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28 October 2019
HELIUM (English)
10 May 2021
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1 reference
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helium
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546029482
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