This article is supported by WikiProject Elements, which gives a central approach to the
chemical elements and their
isotopes on Wikipedia. Please participate by editing this article, or visit the
project page for more details.ElementsWikipedia:WikiProject ElementsTemplate:WikiProject Elementschemical elements articles
I changed the the rating to stub, as "5" is not a rating.
Beast of traalTC 22:15, 1 August 2007 (UTC) Beast of traalreply
Electron Configuration
Unbiunium's electron configuration will not be [2, 8, 18, 32, 33, 18, 8, 2], it will be [2, 8, 18, 32, 32, 18, 9, 2]. That is clearly wrong.
86.138.142.213 (
talk) 21:49, 10 October 2009 (UTC)reply
I think it is the electron configuration of 5g^1 that is wrong. Analogous to Lanthanum and Actinium, one electron in the d-block occurs first, and then the f-block starts. I think the same thing might occur here, where one 7d^1 electron occurs first, before the g-block (in fact I believe one d electron fills, then one f electron, then the g-block, then the rest of the f-block, then the rest of the d-block.)
99.175.101.245 (
talk) 23:02, 14 October 2011 (UTC)reply
It is probably possible for there to be >120 protons, but when there are 120 electrons, extra electrons probably wouldn't orbit causing the atom to stay as an ion.
Not likely at all. The probability of fusion decreases very quickly as the projectile grows in size relative to the target.
Double sharp (
talk) 08:52, 15 November 2016 (UTC)reply
Sources
Well, E121 and E122 are the last elements for which we have predictions. Unfortunately, they are basically limited to: 1st IE, chemically like the element above them (Ac and Th respectively), and electron configurations relativistically stabilized 8p orbitals (though the dns2 electron configurations of Ac and Th should be the first excited states of E121 and E122), and electron affinity for E121 (La: 0.33 eV, Ac: 0.35 eV, E121: 0.57 eV). Nothing like the wealth of predictions you can find for E119 and E120.
I also note that the most common names for these two elements, besides of course "element 121" and "element 122", are in fact "eka-actinium" and "eka-thorium": you can find these in many of the papers I linked above. So, proof for those who insist that eka-Ac and eka-Th must be E141 and E142 (although if one thinks that way, one probably hasn't seen Fricke's paper, so the insistence would be for E139 and E140).
Double sharp (
talk) 15:13, 16 September 2015 (UTC)reply
There may soon be enough for an article, but I don't think the time has come quite yet.
Double sharp (
talk) 14:57, 15 February 2017 (UTC)reply
BTW, the predicted atomic weight is not given in Fricke, but is given in the source I linked immediately above (320 amu).
Double sharp (
talk) 15:01, 15 February 2017 (UTC)reply
The following discussion is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.
I intend to review this article in a timely fashion. Thank you for the nomination. Geotalk 22:30, 4 May 2017 (UTC)reply
@
Geojournal: Sorry to bother you if you're busy, but it's been over a month now: are you still planning to conduct this review soon?
Double sharp (
talk) 10:44, 13 June 2017 (UTC)reply
This review has not received any comments in two weeks. Additionally, the reviewer has not made any edits anywhere in over a month. I'll be taking over.
ParclyTaxel 04:04, 19 June 2017 (UTC)reply
Heavier elements, beginning with element 121, would likely be too short-lived to be detected with current technology: they would decay within a microsecond, before reaching the detectors; however, the precise location of the one-microsecond border of half-lives is not known and may allow the synthesis of elements 121 through 124, with the exact limit depending on the model chosen for predicting nuclide masses. The sentence feels like it could be split in two.
Perhaps the most plausible way of reaching the centre of the island with current technology is to reach nuclides like 299Uue, 295Ts, and 295Lv whose alpha daughters are near enough to the island to undergo electron capture to add the necessary neutrons; nonetheless, the island is expected to be centred around
copernicium, element 112, and thus this would not be of much help synthesising elements beyond 118. Weasel, and also unnecessary because of the "plausible".
The 8p electron of unbiunium is expected to be very loosely bound, so that its predicted ionisation energy of 4.45 eV is actually lower than that of the alkali metal of period 8, ununennium (4.53 eV), and is in fact lower than those of all known elements except for the alkali metals potassium, rubidium, caesium, and francium. Still awkward.
Unbiunium may hence be somewhat like lawrencium in having an anomalous s2p configuration replacing the expected ds2 thanks to relativistic effects, but not having that affect its chemistry: the bond dissociation energies, bond lengths, and polarisabilities of the UbuF molecule are expected to continue the trend down group 3. "Thanks"?
I was reading too much stuff in French and directly translated grâce à. ^_^
Double sharp (
talk) 05:37, 19 June 2017 (UTC)reply
The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.