Talk:Helium

Helium 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.

Helium is part of the Noble gases series, a good topic. It is also part of the Period 1 elements series, a good topic. These are identified as among the best series of articles produced by the Wikipedia community. If you can update or improve them, please do so.

This article appeared on Wikipedia's Main Page as Today's featured article on May 31, 2004.

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Date	Process	Result
January 19, 2004	Refreshing brilliant prose	Kept
April 6, 2005	Featured article review	Kept
August 5, 2008	Featured article review	Kept
August 6, 2008	Featured topic candidate	Promoted
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A fact from this article was featured on Wikipedia's Main Page in the On this day section on 11 dates. [show]

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Add "at STP" to the Boiling-point

Just like is done for the Melting-point. If feels a bit inconsistent now. — Preceding unsigned comment added by Koitus~nlwiki (talk • contribs) 20:52, 15 June 2021 (UTC)[reply]

Other history

Helium was once also produced by fractional distillation of air, and may still be in some parts of the world. In the UK in the post-war period, for example, there were two common varieties of industrial Helium, the expensive US Helium was the purer, while the locally produced variety was from air liquification. Andrewa (talk) 19:12, 1 February 2022 (UTC)[reply]

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

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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]

Done —Sirdog (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]