helium (Q560)

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chemical element with symbol He and atomic number 2
  • He
  • element 2
  • Helium
edit
Language Label Description Also known as
English
helium
chemical element with symbol He and atomic number 2
  • He
  • element 2
  • Helium

Statements

subclass of
s-block
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nonmetal
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group 18
followed by
neon
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image
Helium discharge tube.jpg
3,008 × 2,008; 1.29 MB
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named after
Helios
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mass
4.002602±0.000002
criterion used
standard atomic weight
1 reference
stated in
Pure and Applied Chemistry
title
Atomic weights of the elements 2013 (IUPAC Technical Report) (English)
retrieved
19 October 2020
DOI
10.1515/PAC-2015-0305
electronegativity
4.5
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density
0.1785 kilogram per cubic metre
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melting point
no value
pressure
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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boiling point
−452.070 degree Fahrenheit
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−268.9 degree Celsius
pressure
1 standard atmosphere
1 reference
imported from Wikimedia project
French Wikipedia
speed of sound
180±1 metre per second
temperature
−268.9±0.1 degree Celsius
phase of matter
liquid
1 reference
stated in
CRC Handbook of Chemistry and Physics (78th edition)
page(s)
14-37
965±1 metre per second
temperature
0±1 degree Celsius
phase of matter
gas
1 reference
stated in
CRC Handbook of Chemistry and Physics (78th edition)
page(s)
14-37
refractive index
1.000036
temperature
0 degree Celsius
pressure
1 standard atmosphere
wavelength
589.29 nanometre
1 reference
imported from Wikimedia project
list of refractive indices
French Wikipedia
Commons gallery
Helium
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Commons category
Helium
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Identifiers

NKCR AUT ID
ph503003
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ICSC ID
0603
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HSDB ID
553
1 reference
stated in
Hazardous Substances Data Bank
HSDB ID
553
publication date
28 October 2019
title
HELIUM (English)
retrieved
10 May 2021
ECHA InfoCard ID
100.028.334
1 reference
stated in
ECHA InfoCard database
ECHA InfoCard ID
100.028.334
retrieved
27 December 2018
title
Helium (English)
quotation
CAS no.: 7440-59-7 (English)
E number
E939
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ATC code
V03AN03
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MeSH descriptor ID
D006371
named as
Helium
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MeSH tree code
D01.268.613.350
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D01.362.641.352
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CAB ID
178029
1 reference
stated in
CAB Thesaurus
retrieved
6 April 2020
De Agostini ID
èlio
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French Vikidia ID
Hélium
0 references
Italian Vikidia ID
Elio
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JSTOR topic ID
helium
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KBpedia ID
Helium
1 reference
stated in
KBpedia
retrieved
9 July 2020
Namuwiki ID
헬륨
0 references
NE.se ID
helium
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PSH ID
5816
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Quora topic ID
Helium
0 references
Spanish Vikidia ID
Helio
0 references
Treccani ID
elio
named as
elio
0 references
 

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