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This is an old revision of this page, as edited by Alex26337 (talk | contribs) at 13:22, 28 December 2023 (Set notice shell to contain class rather than its components; Combined Vital article notice with WikiProject Banner shell). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Featured articleHelium is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Wikipedia community. Even so, if you can update or improve it, please do so.
Good topic starHelium is part of the Period 1 elements series, a good topic. This is identified as among the best series of articles produced by the Wikipedia community. If you can update or improve it, please do so.
Main Page trophyThis article appeared on Wikipedia's Main Page as Today's featured article on May 31, 2004.
On this day... Article milestones
DateProcessResult
January 19, 2004Refreshing brilliant proseKept
April 6, 2005Featured article reviewKept
August 5, 2008Featured article reviewKept
August 6, 2008Featured topic candidatePromoted
August 16, 2008Featured topic candidatePromoted
July 31, 2014Featured topic removal candidateKept
February 3, 2023Featured topic removal candidateDemoted
On this day... Facts from this article were featured on Wikipedia's Main Page in the "On this day..." column on August 18, 2005, August 18, 2006, August 18, 2007, August 18, 2008, August 18, 2009, August 18, 2010, August 18, 2011, August 18, 2012, August 18, 2015, August 18, 2017, and August 18, 2018.
Current status: Featured article

condense hydrogen and oxygen to make rocket fuel

Definitely oxygen can be liquified without liquid helium, usually fractional distillation of liquid air. Hydrogen can be liquified without helium also, but maybe it is easier with helium. Gah4 (talk) 01:19, 11 February 2022 (UTC)[reply]

3 HE, In Mineral form

Location and Abundance of 3HE since 2020,advanced usages for Propulsion in Spaceflight feasibly. (Theory). 159.235.169.232 (talk) 03:47, 7 October 2022 (UTC)[reply]

Helium trimer? DePiep (talk) 06:06, 7 October 2022 (UTC)[reply]
I suspect 3He. Our article there does mention hypothetical use as an energy source. DMacks (talk) 06:50, 7 October 2022 (UTC)[reply]
Of course. Should have seen that. DePiep (talk) 07:13, 7 October 2022 (UTC)[reply]

Conservation advocates

There is a ref poking out in the "Conservation advocates" section. That is not how it is done!!! Also. no point having an acrynym if it is not going to ne used.. 103.21.175.235 (talk) 03:31, 31 October 2022 (UTC)[reply]

 DoneSirdog (talk) 23:23, 31 October 2022 (UTC)[reply]

Covalent radius

How does the concept of covalent radius make sense for helium, as it doesn't normally bond with anything? If it is based on a measurement of a bond in some actual helium compound, what is the compound? It seems like a reference is needed in the infobox.CountMacula (talk) 15:59, 8 November 2022 (UTC)[reply]

Hmm. In Covalent radius it says: Tabulated values of covalent radii are either average or idealized values, which nevertheless show a certain transferability between different situations, which makes them useful. I suspect the idealized values part allows it. Note that on Covalent radius it has two (very) different values for helium. I suspect that not putting one on this page would be a good choice. Gah4 (talk) 18:30, 8 November 2022 (UTC)[reply]

Semi-protected edit request on 6 September 2023

Where they say that large amounts of helium-4 are made in stars, add to it "and a little more from alpha decaying radioactive materials" or some variation thereof. RealNamesAreFineZ.E.O (talk) 17:06, 6 September 2023 (UTC)[reply]

 Not done: please provide reliable sources that support the change you want to be made. M.Bitton (talk) 21:44, 6 September 2023 (UTC)[reply]