150th anniversary of the periodic table - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: May 08, 2019, 09:41:24 pm
content: https://www.sciencenews.org/article/periodic-table-history-chemical-elements-150-anniversary

author: GlennSprigg
author_rank: Super Contributor
timestamp: May 09, 2019, 12:06:20 pm
content: Up until 'now', thelatestElement is118, and is called 'Organisson'...(officially confirmed by the International Union of Pure and Applied Chemistry (IUPAC) ).People have often said to me, the likes of... "But what if there is some other elements or 'stuff'that's not found yet here on Earth, that maybe on 'Mars' or what ever"....Well I've tried to explain that there areNO GAPSin the numbers, from '1' (Hydrogen) on-wards !It's not like we are 'missing' numbers 32, or 56-58, etc. They are ALL accounted for !It's like the famous 'Stradivarius' Violins !!! People think they have FOUND ONE !!!! However, theyare ALL numbered, and accounted for !!!, so you probable have a 'fake' today !OF COURSE there are the 'ones' close to the end of the current list, where the DIFFERENCE is that theyare usually VERY short-lived, (and created un-naturally), so will not be 'found'in-the-wild!!These are very un-stable in many different ways. However...I once had a debate with a Physicist, about the possibility of maybe one day 'discovering' such a newartificially created 'Element', that began to approach/attain aNEWlevel ofSTABILITYagain !?His eyes lit up and he looked at me like I was from another Planet hahaha. He then lost me, when hebegan talking about the 'supposed' various finds at 'Area-52' etc, where they think they have found such'indications' of that. And how those NEW 'stable' Elements (which they could not re-produce), now had a'field' like 'gravity', that extended beyond the atom/molecule, that could NOW be detected & amplified !Ok... I left it at that. Who knows...

author: apis
author_rank: Super Contributor
timestamp: May 09, 2019, 12:41:57 pm
content: Maybe he was talking about the island of stability

author: GlennSprigg
author_rank: Super Contributor
timestamp: May 11, 2019, 08:09:38 am
content: Quote from: apis on May 09, 2019, 12:41:57 pmThanks for that, 'apis'. Very interesting. I have never seen that video. (Nice analogies too!).It's interesting that the video was uploadedmid 2012, and they were talking about trying to'leap forward' to a future element114, when 'then' only up to element110was known.And they are 'now' up to number118, with no new stability in sight !

author: apis
author_rank: Super Contributor
timestamp: May 11, 2019, 04:28:40 pm
content: I know that there are still people working on it today. I don't think they are all that interesting though, because such exotic elements will not have any practical use. Since they haven't been produced naturally by any known process in the universe they would have to be created artificially. To use them someone would have to come up with a method of producing them at a large scale and that seems way beyond any technology we have today. Proving their existence do help further the understanding of the underlying physics though.

author: SeanB
author_rank: Super Contributor
timestamp: May 11, 2019, 05:19:22 pm
content: Not that they are not produced naturally, but that they are not present on planets. Most of the higher mass particles are found in large amounts transiently inside nova and supernova events, and also when matter is being torn apart by a black hole. Just hard to see in the storm of other emissions there, but as these are pretty much natural acellerators with stupendous energies they are being produced.Not being detected is more due to the short half life of them, kind of hard to detect when your sample, even if it is being produced in kiloton lots, is going to have decayed down to single atom levels before they reach the point where you could detect them against the background.

author: apis
author_rank: Super Contributor
timestamp: May 15, 2019, 03:20:18 pm
content: Yeah, that's true, there are processes where they will be important. But we won't see physical items or new substances made out of a new undiscovered element any time soon. Even if there exist a super heavy element that is stable it would very likely be too hard to create enough of it for it to be more than a curiosity.