Talk:2913: Periodic Table Regions

Working on the table catalog. For ones that are part of multiple groups, I used the one that takes up the most. For split ones like Mn, I put them both. For Cs, please don't change it because Randall's American and that's how he would think of it. I know what all the elements are so please don't edit conflict me. --Purah #126 (talk) 20:50, 29 March 2024 (UTC)

I'm done. Again, please don't have an edit war over cesium and aluminum. --Purah #126 (talk) 20:50, 29 March 2024 (UTC)

What about Hahnium? ;) 172.70.163.31 20:54, 29 March 2024 (UTC)

That's only for some people in Berkeley, if someone can find evidence that he's used it before in a comic then sure lol. --Purah #126 (talk) 21:12, 29 March 2024 (UTC)

At times, dubnium, hassium, meitnerium and darmstadtium were considered for naming after Otto Hahn, and it reached several stages of international deliberation.

I actually learnt my chemistry in a (UK) lab with a wall-poster periodic table that had Hahnium shown on it. But I can't quite remember in what position, nor can I remember enough of the other differences (there being several) from the actual 'official' namings, so cannot be sure exactly what provenance it had. Pre '92, though, which rules out some of the options.

...but memorable enough for me to 'keep an eye out' for the fate of the name in later years. 172.69.43.243 21:56, 29 March 2024 (UTC)

What about the two categories implied by "Ends in a number, let it slumber. Ends in a letter, not much better"? Which elements are in which? -- Dtgriscom (talk) 01:36, 30 March 2024 (UTC)

I'd say "all in both". Any given "fooium" is going to be a reactive element that (especially as you go further down) is nasty to deal with 'raw'. But not as nasty as "fooium-123", which highly suggests a nuclear decay product that will further decay. 172.71.178.218 02:39, 30 March 2024 (UTC)

Correcting some errors in the stuff about radon led me to add perhaps too much information about how it's formed, how it accumulates in basements, and how it causes health problems. I spent a few years in a lab whose primary research focus was on uranium mine waste and its consequences, so I've got some bias and blind spots. Others may want to edit it down. BunsenH (talk) 01:39, 30 March 2024 (UTC)

FWIW, the idea that radon collects in basements because of its density is a myth. It mixes with air; any variation with altitude is negligible, just as xenon and CFCs don't collect at low altitudes. BunsenH (talk) 04:42, 30 March 2024 (UTC)

I'm too lazy to add this myself, but should there be something in the explanation about the overlap between "weird metals" and "murder weapons? (I checked over it quickly, correct me if there is already something about it) EDIT - just realized this could be due to mercury being in "murder weapons" - Thexkcdnerd 02:02, 30 March 2024 (UTC)

There should be a comment on the fact that people have included that last row inside the table, [such as here](https://en.wikipedia.org/wiki/Extended_periodic_table#Predicted_structures_of_an_extended_periodic_table). It makes it really long, but there's a pretty basic pattern you can extend endlessly. Every other row, you lengthen it by four more than the previous pairs of rows. Though I understand the way orbitals work that make that useful doesn't really apply after you get too far down. DanielLC (talk) 03:23, 30 March 2024 (UTC)

That has been done (not by me), now. But I also added (along the way) something about how not all PTs actually shift La and Ac out of the table. Though, honestly, I actually find it darn unusual (in my experience) to do that, often with those two under Sc and Y, and then the 'floating' groups go from up to Lu and Lr, perhaps starting with a 'repeat hint' of the eponymous elements, then Ce and Th. Otherwise, a split indicated between Group 2 and 3 and the two 14-long sets (La to Yb and Ac to No) with Lu and Lr group-3ed (more accurate to f-block?).

Actually just overturned a few piles of books to try to find my old (30+ years!) degree-level material to confirm what exactly I recall working with back then, but they're probably stashed away elsewhere. Contemporary online versions do all kinds of things, sometimes seemingly according to abstract whims and clearly there's still no 'official' concensus... Hence I left it at "not all" doing so. 172.70.85.27 09:33, 30 March 2024 (UTC)

I mean, "Lanthanide" means "Lanthanum-like". Is lanthanum like itself? It either very definitely is, pretty much pefectly,^{[citation needed]} or it really isn't like it, for the same reason... (But, whatever the answer, we should probably say that actinide is the opposite for the actinides. To satisfy everyone!) 172.70.85.141 12:39, 30 March 2024 (UTC)