Category:Helium

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helium 
chemical element with the chemical symbol He and the atomic number of 2
Helium discharge tube.jpg
Wikipedia-logo-v2.svg  Wikipedia
Instance of chemical element (hydrogen, lithium)
Subclass of group 18,
period 1
Named after
Discoverer or inventor
Time of discovery or invention
Mass
  • 4.002602 ±2e-06 atomic mass unit
Authority control
Wikidata
Blue pencil.svg

Subcategories

This category has the following 9 subcategories, out of 9 total.

A

C

F

H

I

L

Pages in category "Helium"

This category contains only the following page.

Media in category "Helium"

The following 103 files are in this category, out of 103 total.