2280:, see refs 22 to 24. That's been known for Zn since 1971, so it's not particularly new or controversial. The issue is rather that oxidation states in which the (n−1)d electrons are formally lost in the ion are not known. But then again, did you know that the ground state of Pu is 6p5f? That doesn't mean that Pu in actual bonding has any 6p involvement, though. So my impression is that the requirement for ions is one of those simplifications that were thought to be the last word at some point, and still get used in school texts, but now we know more than that. (After all, there is no such thing as a truly ionic bond, not even Cs–F. The cation will always attract some electron density back to itself.) Maybe this kind of thing also explains why the IUPAC definition has been changing: in the Gold Book (I think it's based on the 3rd edition of the Red Book) it wants incomplete d-shells in the ion, in the 2005 Red Book it says groups 3 to 12 (though you can exclude 12), and in the 2011 Principles of Chemical Nomenclature it just says 3 to 12 without any provisions for excluding anybody. Though being a fly on the wall in their meetings would've been interesting. :)
2652:. But I defend the idea that it is small enough not to really matter, since Nb and Ta are so similar that they were confused after their discovery, and yet their configuration is different: ds vs ds. I'd probably say (more or less following something IIRC Christian Jørgensen wrote) that the exceptions are all metals, so they are going to be positively ionised in chemical reactions. Well, not only do most exceptions disappear once you go to +2 charge, but also it's obvious that the excitation energies are less than the ionisation energy. Maybe it would be a problem for the 5g row (due to extreme interelectronic repulsion I can't exclude that an atom of element 126 as 5g8s might spontaneously ionise), but there's so far no proof of that and I expect that thanks to too many subshells being open the PT is going to break down there anyway.
2627:). It seems to be something like the energy to add an electron to a specified orbital starting from the previous element plus a proton, as you suggest. It can't be the full energy for adding the electron, taking into account all interactions among all electrons, or that would always give the right configuration. I would have guessed it's the energy assuming no interaction between valence electrons (electrons added after the last noble gas), but that would result in a sudden jump in energies at the transition from the halogens to the next noble gas, by the definition, and no jump appears in that plot. So, do you know what "orbital energy" means in these descriptions? Or is it only a semi-quantitative description, not to be taken too literally? When you say 7s < 6d, and 6s : -->
1642:, this is awesome to see! I was pondering exactly this arrangement yesterday, and fretting about what to do with H and He, wanting to treat them as a halogen and a noble gas by moving their little block, but that would wreck other properties. I am really glad to learn that this form's been considered seriously and thank you for going out of your way to share it. Its elegant structure makes it inevitable that helium would be sent back home to its s-block column. Compromises must be made. The traditional group numbers 1–18 also need to be revamped here. Using -16 through +1 could work. No wait — just use the orbital and occupation (call them "
2058:, I don't see a great deal of harm here. My perception is that the utility of the orphan tag is to serve as a comment to editors that the article needs to be better linked-to (or deleted), something that must have been more urgent in the early days of Knowledge. I concentrate mostly on science articles and don't see many cases to complain about lately, but will speak up or edit for anything that looks like a problem. If this mass de-orphaning bothers you and you perceive that it is doing harm then I encourage you to put a note on Herravondure's talk page with an explanation and your suggestions. Thanks for working to improve things. –
1806:, my impression is that it would help a lot to explain how development of MOS and VLSI have influenced computer programs, since that is the title subject of the article. Anything that lacks a clear connection to computer programs could be omitted or moved to appropriate hardware or history articles. The statement about microcode being needed to oversee burning of ROMs sounds unlikely to me, so please check. I believe that the main practice is to store the microcode itself in the ROM. I'm not an expert in these subjects but if I spot inaccuracies I'll make edits or let you know. –
2576:
understandable, and accurate enough, though that sounds like a tall order. I agree that focusing on it is somewhat silly because the different configurations are close enough in energy that they get reordered (or mixed into superposition) when in a chemical bonding environment, but I think it's still worth trying to explain the main reasons for
Madelung and for exceptions. I had intended to add something for Cr saying that 4s3d ground state is close in energy to the 4s3d specified by Madelung, so they tend to switch or mix; but according the the
2246:, and for the perspective here on these group 2 members that behave like transition metals. Clearly the definition of TM varies and most of the definitions have grey areas (and even "d-block" is unclear though I'm glad to see the La-vs-Lu spat resolving). The Definition section explains the complexity well now, but I hoped the lede could express this with the alternative definition about having d orbitals involved in chemistry; that would be in line with a common "practical" meaning of TM and the 1997
1620:, as shown in the accompanying sequence in the left margin (read from top to bottom, left to right). The experimentally determined ground-state electron configurations of the elements differ from the configurations predicted by the Madelung rule in twenty instances, but the Madelung-predicted configurations are always at least close to the ground state. The last two elements shown, elements 119 and 120, have not yet been synthesized.
22:
2347:). I haven't seen much recent work on this, but perhaps given the properties of caesium metal I should not be surprised. I'm still convinced it will turn out to be another "honorary" transition metal even at standard pressure, but I'm still looking through the literature. In general, the electronic structures of heavy alkali metals K, Rb, Cs is something I'm quite interested in at the moment. :)
2690:
anyway) the d fills before s. In real compounds there will be partial occupation of each orbital that depends on how you are projecting the occupied molecular orbitals onto your choice of relevant atomic orbitals, but the main idea is surely still valuable. Some post-f elements seem to be a rare exception: Lu is 4f 6s. Lots of exceptions post-5f, but those elements are hard to come by. –
1953:
done by an editor who is already familiar with the history and has sources on hand, to retain any well-justified material. Otherwise, it shouldn't fall on us to assume that anything is valid after the history of malfeasance, so removing the problem material en masse is a good start, even if some good stuff gets temporarily cut. Let me know if you recommend a different approach. –
29:
2580:(great resource!) the first 4s3d level is 0.96 eV higher in energy, which is a third the energy of a chemical bond, so the difference is not so subtle. The difference in the case of V, for example, is much smaller (0.26 eV and of the opposite sign) so why should we consider the difference small for Cr? That's my take on it, but sources such as the
2759:
gap is large and the covalent radius is probably smaller than Hg. I would bet on it being metallic anyway, but I would not be completely flabbergasted if it was not. Surprised, yes. :) Even if it isn't, it seems likely to me that its alloys (eka-amalgams?) would be; incidentally, the "double amalgam"
2549:
The whole thing is kind of silly though, because the levels of different configurations overlap, e.g. the lowest-energy state of a Ni atom is a 3d4s one, but the average energy of 3d4s states is lower than the average of 3d4s states. And the fact that 7s < 6d for 6d metals doesn't seem to make any
2536:
I agree it is in the wrong place on the Cr article, but the funny thing is, it is kind of explaining the right thing in general. Because in fact 3d has lower energy than 4s in a Cr atom; knowing that, the natural question is indeed really "so why is 4s filled at all", and not "why isn't 4s completely
2250:
definition, which specifies d-orbital chemistry but punts on a specifying exactly which elements. (In my imagination, I can just see a bunch of chemistry geezers agreeing to leave it vague after a long day of haggling over the definition, so they can just go home. I'm curious how the process actually
2669:
P.S. It's truly difficult to find good examples of metals(0) in compounds to compare electron shell occupancy with bare atoms. This is mostly because most examples of TMs in such low oxidation states are in complexes where pi backbonding offloads a lot of electron density away from the central atom,
2647:
P.S. the idea that half-filled or full shells are favoured is intuitively attractive, but a look at the electron configurations of the 4d metals shows that it can't be right; Nb is 4d5s apparently for the sake of it. Meanwhile, in the f-rows neither Tm nor Md wants to be fs instead of fs. :) I don't
2483:
cannot exceed 100, so don't be surprised if delightful weirdness contradicting periodicity happens past that. It's all still part of the big chemistry family, nonetheless – though I personally don't mind if physicists want a dual-administration regime; after all, the last hurrah of chemically rather
2291:
Come to think of it, I should probably add something about the Ca-Sr-Ba triad, since "honorary transition metal" has already appeared in the literature. At the moment "transition metal" and "d-block" are the same thing per the latest statements from IUPAC, but who knows what people will decide later
2072:
Hello, again. I received a very similar response from the other editor who addressed
Herravondure about the de-orphaning. What you said makes total sense. Those edits don't bother me. I just wanted to make sure this wasn't an issue that could create significant problems. Thanks for your response and
2551:
5d for 5d metals; Lr-Hs behave like congeners of Lu-Os anyway. Personally, I'd rather not emphasise it, and simply follow
Feynman's lectures in saying that transition elements have multiple configurations close to each other and that the atom's environment plays a large role. Much more correct than
2439:
A postscript for some closure: I think I was wrong about Cs 5d at standard conditions. (Under pressure it is possible, but that is a different story, considering that then even Xe 5d is possible too IIRC.) Well, it explains why Pyykkö's paper has been cited a lot for Ca-Sr-Ba as honorary transition
2034:
about those types of edits. But I can see that since then, there have been many edit summaries showing "Successfully de-orphaned!", not to mention the hundreds done prior to your inquiries on the editior's talk page. I just wanted to see if you could review some of
Herravondure's de-orphaning edits
2782:
Hello! I can see you're a regular(ish) editor of the
Polypropylene article - it's been vandalised by RedsRedHollow again, but it's so long since I edited an article on here that I can't remember how to do it (also, I see that a manual edit is recommended to avoid alerting this charmer). So perhaps
2540:
In individual atoms, interelectronic repulsion explains 4s occupancy. In compounds this can change. When atoms are positively charged, increased attraction to the nucleus wins as screening is decreased, so Fe (also Cr-like) is 3d4s. A few times +2 is not quite enough to fix things, but normally it
1952:
for the update and perspective. I really appreciate your work on this problem. I saw bulky inappropriate material on a few dozen articles but had no idea of the scope of the problem. I'd be glad to help clean up on the science and tech articles. Where possible it would be better for the cuts to be
2613:
Understanding the precise meaning of the relative "orbital energies" is a goal and a sticking point for me. Its definition is unclear in various sources. It is an attractive idea to define something like an energy that excludes valence electron interactions (which seem to be dominated by
Coulomb
1932:
for more info about him. I suspected he was Jagged 85 sock puppet but now it is established. If you want to join clean up that would be great. I would start clean up soon. The amount of erroneous information is enormous, so some articles probably had to be stubbed just like in previous Jagged 85
1690:
Hi, I wanted to explain that I provided those two references because my point was that the trimer is only observed under specific experimental conditions. Those two papers actually agree with one another. But I didn’t notice that the trimer was already mentioned below, and the revert made sense.
2689:
I'm coming around to seeing your point of view since the order of filling for most +2 and +3 cations is (n−1)d before ns. To the extent that these apply to the +2 and +3 oxidation states that are common in compounds (not the actual charge by any reasonable measure, but seems remarkably relevant
447:, it's really good to hear from you. As a interested non-chemist, I hope to do my part to build on your years of work in making these articles clear and readable. I welcome any help and corrections along the way, from you and other chemists, to keep my edits accurate and not too funny-sounding.
2710:
Not for the first time (thanks to collecting lattice parameters) I wish the heaviest elements were more stable. One could predict some of them would be weird from elementary means: well, first you think about what eka-Hg must be like, and then you realise that the staircase between metals and
2622:
under Aufbau
Prinzip, and in Atkins' book "Quanta" under "Building-up principle". I wish we had it as a commons image. But these sources don't say specifically what "orbital energy" means in an atom's deviously complex many-electron system. It's clearly not referring to the hydrogenic orbital
2575:
and a few related articles. Neither of us wants to belabor the exceptions too much for reasons you described, but it would be good to have a description of each
Madelung exception in articles for some exceptional elements, such as Cr and Cu, if it is possible to be reasonably brief, broadly
419:
Thanks for the efforts of taming some of our many articles. I have long been taught, by stern organic colleagues, that there is no such thing as a chiral center because the concept pretends that only part of the molecule is chiral. And even if there were such a thing, it would be called a
2179:
I wish we could be around to see our imminent slow-motion collision with
Andromeda, but there is plenty to astonish us just in our lifetimes. Maybe we'll get to see the reflection of our own galaxy as it was a billion years ago by peering into a conveniently located gravitational mirror.
218:
they shout, as if that's a real excuse instead of something the cat typed. Note that the Br-itish, Au-ssies and In-dians spell
Aluminum wrong on purpose...but why?? I'll tell you: it evades search engine detection (smart!) and I like that they make an honest effort to speak English.
374:
Tip: Remember that a resistor that says “1000” really means “100”. The zero at the end means that there is no zero at the end. I kid you not. If you actually want 1000 Ohms, don't even bother looking, as they were used up long ago. Use nine hundred whatever just like everyone else
2628:
5d, what are the conditions for comparing these, and can you suggest a source that clarifies it? I'm waiting to receive a copy of Atkins' "Physical Chemistry", which seems to be the origin of that plot, and I'm hoping that book will make it clearer. Any of your ideas are welcome.
2283:
But since f-elements also have d valence orbitals, I decided to delete the sentence from the lede as confusing even if not wrong. Probably Cs through Hg all have some kind of 5d involvement, but calling them all transition elements is a bit much, and I don't want to give that
595:
in the article and in its short description. So instead of reverting all changes made by any user in one or more edits, most commonly it's better to edit those revisions, make corrections and inform user(s) accordingly. Also, we need adequate points making differences between
2479:(My personal opinion is that the periodic table is a human-scale-pressure thing. Beyond that, don't be too surprised if all sorts of delightful weirdness happens. Maybe that suggests that there's no need to worry about 8th-row elements' placement; well, on the human scale,
2729:
That would be a trip to see a metallic halogen, runny heavy metals and maybe even a gaseous transition metal Cn. Given the chemical variety of xenon, I suppose radon chemistry is very rich and accessible in actual small experiments, though it's awfully hot to the touch.
2314:
d orbitals; I should have read that paragraph carefully. Agreed that too much meaning is attributed to oxidation states, which are often only remotely related to the named ion. Also, you make a good case for adding a subsection about the esteemed honorary TMs. Cheers,
2054:, I'm not a fan of rote rule-following such as mass de-orphaning by Herravondure, and would rather that editors make thoughful improvements on each article. Even though they are not doing much to finding related articles and add appropriate links as recommended in
2643:
When I wrote 7s < 6d for the 6d elements, I meant it in the sense of who gets ionised first in bare ions, e.g. Rf is 6d7s (removing electrons from 6d before 7s) whereas Hf is 5d6s. As for what other authors mean, I'll have to look at the context first before
2537:
filled"? The Aufbau is often stated sloppily, but really 4s only comes before 3d in the context of "add a proton and an electron, that's the next element" starting from hydrogen. If you add electrons successively to a bare nucleus, then it is a different story.
1663:
Janet displayed three different versions in his paper describing his periodic system; the first one indeed had H over F and He over Ne. The second had He over Ne and H outside the table altogether. But the third one has H over Li and He over Be as pictured,
2571:, I thoroughly agree with your comments. I think it would be helpful to add more discussion of the physical reasoning for how the Madelung ordering comes about, and why there are exceptions. It could extend the Madelung ordering part of the article on the
1835:* Yes, hardware improvements enabled software improvements. Your suggestion is inspiring me to add a new subsection in the history section titled "Modern programming environment". It will provide a preview of material presented in the rest of the article.
1972:
article probably should be stabbed, as it would take too much time to clean up. But we'll see. I'll start a discussion on MOSFET talk page soon, and will list my problems with article. Hopefully other users will jump in and we'll figure out what to do.
1710:, I was just in the process of rearranging to avoid this confusingly split treatment of the trimer when I saw this message from you. I'll quit and let you work on it. Feel free to revert what I have just done if you prefer a different approach. –
2413:
Thanks! Caesium will have to cooperate (also some other orbitals are of interest), but I suspect it will. If not, then I've learned something as well. I expect less from K and Rb; Fr should be intermediate between Rb and Cs like it usually is.
2164:"Some astronomers believe that the spiral nebulae, of which the Great Nebula in Andromeda is in our view the largest, are external galaxies, and that our galaxy seen from one of them would present merely the appearance of a spiral nebula."
1967:
Thanks, I think most articles can be cleaned up, but in general if you see exceptional claim backed up by hard-to check-source, just delete it, as it was one of Jagged 85 favorite tactics to introduce disinformation. However I think
568:
orientations in space, though I'm not sure that would be a clear explanation. The important thing is the geometry of the molecule, not how the whole molecule is oriented. In any case, thank you for all your work improving Knowledge.
2287:
La vs Lu being mentioned in two different IUPAC reports is a relief, yes. Now if only the textbooks would pay attention to it more often (or at least crack open Landafshitz where it is mentioned that Lu is not really a rare
1691:
Still, I think that the article should explain that under conditions of low vapor density only the monomer is observed, whereas the trimer can be seen at higher density. If you don’t mind, I’d like to have a try at that.
367:
Tip: You may need to replace “parts”. All transistors are the same so don't worry about NPN versus PNP, and those indecipherable “specs” are just for marketing. When you power it up, wrong ones weed themselves out with a
2751:
is involatile and seems best described as an ionic compound(!). It appears to dissolve as Rn in halogen fluoride solvents. So I expect Rn chemistry will be rich indeed, but also that it will be quite unusual compared to
498:
is fruitful. Your thoughts and suggestions are most welcome, especially about how to refer to "chirality centers". The related and tricky idea of "chiral" groups and ligands also needs some further explanations.
663:
again since the consensus was made a year ago but I want to ensure that this current objection is heard by the original participants of the discussion before I merge and remove this from the backlog. Thanks!
176:. I have wondered who's been remote-controlling my thoughts lately and figured it was space aliens using 5G to control the nanobots injected with the vaccine, but now I know it was the toothpaste all along. –
2541:
is. The exceptions are La, Gd, Lu, Ac, Th, Pa, and probably 6d metals Lr–Cn which due to relativistic effects truly do have 7s < 6d even in the atom. Truly strange things will probably start to happen at
619:
I agree that it is desirable (and more friendly) to improve rather than revert other users' work. In this case I reverted your brief edit because I believe it was not accurate, as I explained in the edit
481:
to "chirality centers". I believe that chirality centers, point chirality, etc. can be a well-defined and useful concepts, though the definitions and use are tricky. I struggled for the right terms since
2586:
Anomalies occur in the periodic table when two confgurations have approximately the same energy. This holds for instance for the 3d4s and 3d4s confgurations of chromium (Cr) ... and for copper (Cu) ...
157:
Keep up the good work. All articles benefit from a new set of eyes, especially longer ones (articles, that is). Agreed: references to answers.com and many related "regurgitators" should be removed.--
2711:
nonmetals would reach the noble gas group in the 7th period. (Although okay, you'd need spin-orbit coupling to predict eka-Pb being mercury-like.) They would really be interesting elements to study.
2443:
Oh well, I learned something indeed. And there's always Cs 5p to hope for. (Even if not, Fr 6p should be more likely. But okay, given the half-life, that is not so much "hoping" as "dreaming". :D)
2670:
so much so that the oxidation state is not a good measure of the actual state of the electron shells anymore. Honestly, the best example of a true nonpositively charged TM is just Au(−I) in
2600:. It seems intuitively attractive that the electrons can get out of each other's way by filling out the subshell with spherical symmetry as in d and d cases. But that says little about the
40:. Though you seem to have been successful in finding your way around, you may still benefit from following some of the links below, which help editors get the most out of Knowledge:
2329:
Great to hear that! :) I've added a paragraph about Ca, Sr, and Ba as honorary transition metals. (Too bad about Ra, if only someone had looked at it. It probably would be one too.)
728:
2365:
for caesium 5d. But I am not aware that the molecule in question has been synthesised, so K-Rb-Cs will have to wait to be honoured (if they turn out to merit the honour). :)
2614:
interactions), and then explain how the Coulomb interactions among electrons shift the configuration around sometimes. There's a beautiful plot of the orbital energies vs
2440:
metals, but the possibility for Cs has been mostly ignored since then in the literature. It's just too unlikely to happen when 7s < 5d in a bare neutral Cs atom. :(
2513:
564:-1,2-dichloroethene molecule no matter how they are rotated in space. One might say that in different configurational isomers, the functional groups have different
1929:
2546:
120 when 5g becomes involved, but we'll need more detailed calculations. Anyway, it's not like it'll be of much practical relevance for a long while. ;)
2258:, when group 12 doesn't do that (excluding rare and controversial observations) so that's incompatible with the strict "d-block" definition. Maybe say
2099:
article's source, I couldn't see the infobox distance. Perhaps it was looking it up somewhere, I'd have to check the template. Eventually I read in
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My condolences, you're not alone. A tin-foil hat works for me — keeps the thoughts echoing inside, remote-control rays out. (Beware of foil that is
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ones. It is folly to assign a "point" in space that makes an asymmetric object so. But the concept of examining local symmetry such as generalized
2111:"if dist_ly and dist_pc are omitted, but parallax is present, then the object's distance will be computed from parallax and, if present, p_error"
2512:
has been nominated for a good article reassessment. If you are interested in the discussion, please participate by adding your comments to the
2760:
Hg–Cn system would be cool. On the other hand Og seems like it could be a metal (or at least semiconductor) in the noble gas group. What fun.
344:
Tip: A four-probe ohm meter can detect the branching pattern, and microvolt drops on the power traces tell you where the current is flowing.
2035:
to determine if they're being done as you instructed. I thought I should let you know in order to prevent an ongoing problem. Thanks much.
2030:, who I also don't know, involving "de-orphaning" articles. I know nothing about that process, but discovered that you and another editor
36:
Here's wishing you a belated welcome to Knowledge, MadeOfAtoms! I see that you've already been around a while and wanted to thank you for
2310:
Your reasons make sense for changing "They are the elements that can use d orbitals ...". Good point about group 12 chemistry involving
714:
50:
2801:: Gladly. I see that RedsRedHollow already has a talk-page warning. Thanks for your past edits and for keeping and eye on the damage. –
2458:
Condolences for cesium's deserted 5d. Your persistence in exploring outside the box will surely turn up more interesting surprises. –
2162:
Yes indeed. We've come a long way – the "Galaxy" entry in The British Encyclopedia, 1933 (within living memory though not mine) ends
1872:
1832:* The external microcode to burn ROMs occurred in the 1960s, according to the source. Yes, microcode is now stored on the same chip.
190:
I cannot respond fully since the introduction of magnetic nano-drones into my blood steam as part of my so-called "COVID vaccine."--
37:
2674:. Maybe we'd be better off teaching the (n−1)d < ns energetic order that is true within chemically relevant oxidation states.
457:
380:
Tip: Some small parts tend to leave the universe for a time. The ones that return often choose a pant cuff or neighboring room.
223:
conceal all the ways to drive there from the Americas...a secret blockade?) Look both ways, never sleep, and take good care.
96:
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Screw it all back together. Then try this trick: turn it over and shake it to hear some of the screws you thought you lost.
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energy of the 5s and 3d and why it shifts. For example, I don't have a proper physical explanation (and a source) for
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This form of periodic table is congruent with the order in which electron shells are ideally filled according to the
2340:
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2516:. If concerns are not addressed during the review period, the good article status may be removed from the article.
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208:, as aren't the cans and the ears. And why no company called Sncoa — acquired and Snuffed out by Alcoa of at. no.
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Get out some oscilloscopes, a signal generator and a spectrum analyzer to show it that you're entirely serious.
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Your encouragement and guidance are much appreciated. Thank you also for being a tireless educator and for the
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Find better schematics that were posted on the web by a benevolent grad student half-way around the world.
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from the 1970s). There's some question about whether it becomes a 4f-band metal at even higher pressure (
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I doubt anyone has investigated Fr or Ra. Though, on energetic grounds, Rb and Cs are also suspicious.
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Tip: Every time your schematic starts to run off the page, tape another piece of paper to the edge.
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Zn 3d and the congeners have already been found as bonding AOs in quite normal compounds like ZnF
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isomerism (or any kind of isomerism) the spatial orientation of the molecules doesn't matter: a
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enough to hold an opinion about merging, so I will leave that up to you and other editors. –
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an electron would prefer to drop out of 4s and into 3d for Cr and Cu, but not for V or Ni.
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really have a simple explanation either for why it happens sometimes and why it doesn't,
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The only map of chirality-related chemistry articles I know of are the navbox templates:
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The general tendency to form half- or fully-filled subshells deserves more coverage.
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some calculations on a high-pressure electride phase of Na came out a few months ago
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For some further fun: under pressure caesium becomes a 5d-band metal (here's
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But maybe this is asking too much; I already cry for Po, At, Rn, and Fr. :(
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1775:. I synthesized different sources to write the MOS transistor section here:
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RFC: it's not remotely standard (even though a bunch of serious voices like
525:. I would like to know the difference between configurational isomerism and
2095:
This might amuse you, if you haven't discovered it already. Looking at the
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137:. The short list of links is very helpful and the cookies are excellent! --
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Tip: You should have saved a copy of the firmware last time this happened.
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2140:) have it this organized. And severely impressed that it is possible to
1922:
has been banned for being sock puppet of Jagged 85, a well known vandal
1823:* Since you didn't suggest corrections for the silicate minerals --: -->
2026:
Hello, MadeOfAtoms. You don't know me, but I stumbled on some edits by
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Maybe I stumbled into a peeve of your stern colleagues when I recently
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than physically identifying new elements was mendelevium in 1955. :D)
2256:
They all can use d orbitals as valence orbitals to form chemical bonds
428:. On that note, is there a map of all of our articles on chirality?--
338:
No: Reverse engineer the whole thing and draw up your own schematics:
250:(This represents my experience only, and it is not entirely serious.)
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604:, or else these 2 articles should be merged into a single article. —
212:? Note the "missing" floor 13 at Trump Tower, like it doesn't exist!
302:
Yes: Unplug it right away or put on goggles and shoes. Safety first!
1860:
699:'s unorthodox way to deal with that. He put the s-block on the far
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by using four tildes (~~~~) to insert your username and the date.
20:
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It's not even certain that Cn will be metallic, because the 7s–7p
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MOS transistor chain, I'm now confident of my secondary research.
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reliable distance measurements up to 5,000 parsecs (16,000 ly)
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kind words, and all your great contributions to this project.
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647:
Merger of Alkane stereochemistry into Conformational isomerism
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I think the lede still needs an adjustment where it now says
679:
Regarding your comment about the speed bump after the s-block
291:
Any charred components? Stains from smoke or flame? Rodents?
25:
The welcome may be belated, but the cookies are still warm!
2618:
you may have seen: it appears a few places on the web like
2472:
On weird things happening to alkali metals under pressure:
1646:") which is already there as column headings...brilliant! –
278:
Tip: Save most of the screws for later, in case you fix it.
272:
Still not working? Bummer, it's broken. Take a deep breath.
88:
Need some ideas of what kind of things need doing? Try the
2132:, I had not noticed this and am indeed impressed that the
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all the teachers asking pupils to remember Cr and Cu. :)
659:
so I was wondering if you would be willing to rejoin the
95:
If you don't already know, you should sign your posts on
2208:
6s5d at lower energy than 6s6p, and that (n−1)d AOs are
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651:
Hi, there has been a recent objection to the merger of
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already calls barium an honorary transition metal. :)
560:
molecule is a different configurational isomer than a
2136:(or maybe it's astrometrologists, but definitely not
263:
Did you flip every switch and wiggle every connector?
355:
Tip: Try following the previous instruction earlier.
299:
Bright flashing sparks or sharp “tasing” sensation?
341:Identify every component and trace out every wire.
329:
Still not working? Uh-oh, maybe it's really broken.
266:
Does the fan spin if you vacuum the lint out of it?
1995:Hey, just wanna let you know I started discussion
283:How's the battery for the CMOS memory holding up?
1802:accurate and well sourced. For the section about
1771:made me think you could help my accuracy in the
1660:Glad you like it, it's one of my favourites. :)
1827:monocrystalline silicon, boule crystal --: -->
1744:, I'm all done for now so please have at it. –
1930:Wikipedia_talk:Requests_for_comment/Jagged_85
1777:Computer_program#Very_Large_Scale_Integration
722:
364:Make it function as shown in the schematics.
8:
2584:do describe the difference for Cr as small:
1725:No, this is good! Keep going by all means.
1779:. Could you check it for accuracy, please?
729:
715:
391:No: How much is a refurbished one on eBay?
102:I hope you enjoy editing here and being a
2260:All except group 12 can use d orbitals...
703:of his table (1928), rather than the far
695:like it), but you might be interested in
2582:Walraven lecture notes on atomic physics
1926:Knowledge:Requests for comment/Jagged 85
2585:
2399:Good luck on your Cs 5d publication! –
2259:
2255:
2163:
2145:
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324:Voltage regulator or power transistors
2292:based on those carbonyls. And here's
7:
2650:but probably there is not one anyway
26:
246:How to repair any electronic device
623:I haven't studied the articles on
14:
2345:a 1980s paper saying probably not
2113:and now I am properly impressed.
2007:articles. Feel free to chip in.
683:Since you mentioned that at the
294:Yes: Well, there's your problem.
27:
2623:energies (which depend only on
2550:difference compared to 6s : -->
2216:(M = Ca, Sr, Ba). And at least
1820:Thanks for the look and advice.
615:) 16:15, 12 January 2022 (UTC)
458:Template:Navbox stereochemistry
2578:NIST database of atomic levels
2502:Good article reassessment for
2361:Yeah, all I find is this 2003
2341:another 1970s paper saying yes
2032:educated Herravondure on May 2
486:refers equally to any kind of
1:
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2424:15:40, 29 December 2022 (UTC)
2409:09:53, 28 December 2022 (UTC)
2395:07:53, 28 December 2022 (UTC)
2375:08:01, 28 December 2022 (UTC)
2357:07:43, 28 December 2022 (UTC)
2325:07:32, 28 December 2022 (UTC)
2306:03:51, 28 December 2022 (UTC)
2272:23:06, 27 December 2022 (UTC)
2242:for updating and simplifying
2233:11:38, 26 December 2022 (UTC)
2190:10:47, 23 November 2022 (UTC)
2175:16:16, 21 November 2022 (UTC)
2158:08:05, 21 November 2022 (UTC)
2123:00:46, 21 November 2022 (UTC)
1845:13:40, 10 February 2022 (UTC)
1816:06:58, 10 February 2022 (UTC)
1798:, thanks for working to make
521:Please elaborate reasons for
454:Template:Asymmetric synthesis
2770:04:39, 31 January 2024 (UTC)
2740:03:29, 31 January 2024 (UTC)
2724:17:39, 30 January 2024 (UTC)
2662:03:16, 16 January 2024 (UTC)
2639:21:07, 15 January 2024 (UTC)
2596:mentions it but doesn't say
2562:03:20, 11 January 2024 (UTC)
2527:09:07, 4 February 2023 (UTC)
2494:16:59, 1 February 2024 (UTC)
2468:19:07, 19 January 2024 (UTC)
2453:18:01, 18 January 2024 (UTC)
1789:11:35, 8 February 2022 (UTC)
1754:22:19, 2 February 2022 (UTC)
1735:22:11, 2 February 2022 (UTC)
1720:22:09, 2 February 2022 (UTC)
1701:21:48, 2 February 2022 (UTC)
1678:10:09, 25 January 2022 (UTC)
1656:08:54, 25 January 2022 (UTC)
1633:00:02, 25 January 2022 (UTC)
674:00:57, 19 January 2022 (UTC)
641:01:55, 13 January 2022 (UTC)
613:05:27, 12 January 2022 (UTC)
579:07:21, 12 January 2022 (UTC)
539:13:08, 11 January 2022 (UTC)
335:Do you have the schematics?
275:Open it up and look inside.
2532:Regarding Aufbau violations
2381:P.S. Do you have access to
2083:16:25, 15 August 2022 (UTC)
2068:07:17, 15 August 2022 (UTC)
2045:13:55, 14 August 2022 (UTC)
1826:Czochralski process --: -->
1760:Please review paragraph in
509:09:51, 17 August 2021 (UTC)
438:02:31, 17 August 2021 (UTC)
307:Power supply outputs okay?
2843:
1857:Hey just to let you know,
1666:and he decided to adopt it
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591:I see you mentioned about
468:should be on the list too.
410:09:50, 5 August 2021 (UTC)
235:04:44, 2 August 2021 (UTC)
200:02:29, 2 August 2021 (UTC)
2204:It may interest you that
1983:21:23, 29 June 2022 (UTC)
1963:17:09, 29 June 2022 (UTC)
1943:20:57, 27 June 2022 (UTC)
1608:
1603:
424:, a term that directs to
310:No: Check and repair the:
186:21:40, 29 July 2021 (UTC)
167:13:09, 29 July 2021 (UTC)
147:20:01, 15 June 2021 (UTC)
122:10:10, 15 June 2021 (UTC)
61:Five pillars of Knowledge
51:Contributing to Knowledge
2825:21:03, 26 May 2024 (UTC)
2811:21:42, 22 May 2024 (UTC)
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2793:20:40, 22 May 2024 (UTC)
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2017:20:23, 2 July 2022 (UTC)
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1933:cleanup, but we'll see.
1914:the main contributor to
1825:polysilicon rods --: -->
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1773:computer program article
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738:Left-step periodic table
657:Conformational isomerism
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174:inside scoop on fluoride
142:
2706:Lament for superheavies
1824:Siemens process --: -->
321:Electrolytic capacitors
2385:? Because I don't. :(
1999:about what to do with
653:Alkane stereochemistry
475:changed a section name
33:
2778:Polypropylene article
2022:Your expertise needed
1644:Madelung's suggestion
396:Voilà, problem fixed!
153:Keep up the good work
46:Introductory tutorial
24:
2294:another recent paper
388:Maybe it works now?
269:What about the fuse?
2138:astrometeorologists
2005:MOSFET applications
685:Talk:Periodic table
593:spatial arrangement
527:spatial orientation
516:Cis-trans isomerism
2815:Thanks very much!
2104:Starbox astrometry
740:(by Charles Janet)
558:1,2-dichloroethene
462:Molecular symmetry
422:stereogenic center
260:Did you reboot it?
106:! Again, welcome!
56:Writing an article
38:your contributions
34:
17:A belated welcome!
2783:you could do it?
2514:reassessment page
2210:actually involved
1920:Mohamed M. Atalla
1615:
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629:stereoselectivity
496:asymmetric carbon
254:Is it plugged in?
237:
215:Triskaidekaphobia
136:
127:Thank you kindly
120:
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2594:Aufbau principle
2573:Aufbau principle
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2244:Transition metal
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1879:deleted contribs
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1800:computer program
1762:computer program
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625:chemoselectivity
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318:Bridge rectifier
257:Is it turned on?
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206:not actually tin
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66:Community portal
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1924:]. You can see
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1804:History of VLSI
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2262:? Thoughts? –
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2200:Re your thanks
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1781:Timhowardriley
1767:Your edits in
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2299:
2295:
2290:
2286:
2282:
2275:
2274:
2273:
2269:
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2261:
2257:
2249:
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2241:
2237:
2236:
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2230:
2226:
2221:
2219:
2211:
2207:
2199:
2191:
2187:
2183:
2178:
2177:
2176:
2172:
2168:
2165:
2161:
2160:
2159:
2155:
2151:
2147:
2143:
2139:
2135:
2134:astrometrists
2131:
2127:
2126:
2125:
2124:
2120:
2116:
2112:
2105:
2098:
2090:
2084:
2080:
2076:
2071:
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2061:
2057:
2053:
2049:
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2033:
2029:
2021:
2019:
2018:
2014:
2010:
2006:
2002:
1998:
1990:
1984:
1980:
1976:
1971:
1966:
1965:
1964:
1960:
1956:
1951:
1947:
1946:
1945:
1944:
1940:
1936:
1931:
1927:
1923:
1921:
1917:
1910:
1907:
1904:
1901:
1898:
1895:
1892:
1889:
1886:
1885:nuke contribs
1883:
1880:
1877:
1874:
1871:
1868:
1862:
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1637:
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1618:Madelung rule
1611:
1606:
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1596:
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1577:
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1199:
1197:
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1189:
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1177:
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1129:
1125:
1114:
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832:
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827:
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815:
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732:
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708:
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697:Charles Janet
694:
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285:
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236:
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222:
217:
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105:
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91:
83:
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77:
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69:
67:
64:
62:
59:
57:
54:
52:
49:
47:
44:
43:
41:
39:
23:
16:
2781:
2762:Double sharp
2716:Double sharp
2713:
2709:
2676:Double sharp
2668:
2654:Double sharp
2624:
2615:
2605:
2601:
2597:
2569:Double sharp
2554:Double sharp
2548:
2542:
2539:
2535:
2517:
2508:
2486:Double sharp
2480:
2445:Double sharp
2442:
2438:
2416:Double sharp
2387:Double sharp
2367:Double sharp
2349:Double sharp
2298:Double sharp
2247:
2240:Double sharp
2225:Double sharp
2222:
2203:
2142:use parallax
2094:
2028:Herravondure
2025:
1994:
1905:
1899:
1893:
1887:
1881:
1875:
1869:
1856:
1772:
1766:
1724:
1689:
1670:Double sharp
1640:Double sharp
1625:Double sharp
1623:
704:
700:
682:
666:Karthanitesh
650:
607:
583:
565:
561:
553:
549:
520:
491:
488:stereoisomer
484:stereocenter
466:Prochirality
426:Stereocenter
418:
399:
315:Power switch
249:
220:
213:
209:
205:
156:
130:
129:
109:
108:
101:
94:
87:
76:The Teahouse
35:
2803:MadeOfAtoms
2732:MadeOfAtoms
2692:MadeOfAtoms
2631:MadeOfAtoms
2460:MadeOfAtoms
2401:MadeOfAtoms
2363:calculation
2317:MadeOfAtoms
2264:MadeOfAtoms
2182:MadeOfAtoms
2150:MadeOfAtoms
2060:MadeOfAtoms
1955:MadeOfAtoms
1861:Maestro2016
1853:Maestro2016
1828:... --: -->
1808:MadeOfAtoms
1746:MadeOfAtoms
1742:KeeYou Flib
1727:KeeYou Flib
1712:MadeOfAtoms
1693:KeeYou Flib
1648:MadeOfAtoms
693:Eric Scerri
633:MadeOfAtoms
608:CrafterNova
587:MadeOfAtoms
571:MadeOfAtoms
546:CrafterNova
531:CrafterNova
501:MadeOfAtoms
479:Enantiomers
402:MadeOfAtoms
227:MadeOfAtoms
178:MadeOfAtoms
139:MadeOfAtoms
90:Task Center
2817:JaneVannin
2799:JaneVannin
2785:JaneVannin
2744:Fun fact:
1903:block user
1897:filter log
689:Henry Bent
661:discussion
490:including
443:Thank you
415:Enantiomer
132:Polyamorph
111:Polyamorph
104:Wikipedian
97:talk pages
71:Help pages
2510:Manganese
2504:Manganese
2248:Gold Book
2218:one paper
2109:(!) that
2056:WP:ORPHAN
1909:block log
550:cis–trans
492:cis/trans
445:Smokefoot
430:Smokefoot
221:Maps apps
192:Smokefoot
159:Smokefoot
2602:relative
2251:worked.)
2206:Ba I has
2144:to make
2009:DMKR2005
1975:DMKR2005
1950:DMKR2005
1935:DMKR2005
1873:contribs
620:summary.
566:relative
2288:earth).
2238:Thanks
2128:Thanks
2091:Starbox
1948:Thanks
1769:silicon
1740:Thanks
1638:Thanks
1610:s-block
1605:p-block
1600:d-block
1595:f-block
368:“bang”.
2337:papers
2097:Sirius
2075:Stoarm
2052:Stoarm
2037:Stoarm
2001:MOSFET
1991:MOSFET
1970:Mosfet
1916:Mosfet
2545:: -->
2212:in MX
1928:and
1708:Qflib
701:right
655:into
562:trans
548:, in
375:does.
2821:talk
2807:talk
2789:talk
2766:talk
2736:talk
2720:talk
2696:talk
2680:talk
2672:CsAu
2658:talk
2635:talk
2620:here
2558:talk
2490:talk
2464:talk
2449:talk
2420:talk
2405:talk
2391:talk
2383:this
2371:talk
2353:talk
2321:talk
2302:talk
2268:talk
2229:talk
2186:talk
2171:talk
2167:NebY
2154:talk
2130:NebY
2119:talk
2115:NebY
2079:talk
2064:talk
2041:talk
2013:talk
2003:and
1997:here
1979:talk
1959:talk
1939:talk
1918:and
1891:logs
1867:talk
1841:talk
1812:talk
1785:talk
1750:talk
1731:talk
1716:talk
1697:talk
1674:talk
1652:talk
1629:talk
705:left
691:and
670:talk
637:talk
627:and
600:and
575:talk
535:talk
505:talk
464:and
456:and
434:talk
406:talk
231:talk
196:talk
182:talk
163:talk
143:talk
117:talk
2757:1/2
2752:Xe.
2746:RnF
2606:why
2598:why
2567:Hi
2334:two
2148:. –
2050:Hi
1794:Hi
1706:Hi
1576:Ubn
1571:Uue
554:cis
544:Hi
477:in
2823:)
2809:)
2791:)
2768:)
2738:)
2722:)
2698:)
2682:)
2660:)
2637:)
2560:)
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2492:)
2466:)
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2422:)
2407:)
2393:)
2373:)
2355:)
2343:,
2323:)
2304:)
2296:.
2270:)
2231:)
2188:)
2173:)
2156:)
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2107:}}
2101:{{
2081:)
2066:)
2043:)
2015:)
1981:)
1961:)
1941:)
1843:)
1814:)
1787:)
1752:)
1733:)
1718:)
1699:)
1676:)
1654:)
1631:)
1566:Og
1561:Ts
1556:Lv
1551:Mc
1546:Fl
1541:Nh
1536:Cn
1531:Rg
1526:Ds
1521:Mt
1516:Hs
1511:Bh
1506:Sg
1501:Db
1496:Rf
1491:Lr
1486:No
1481:Md
1476:Fm
1471:Es
1466:Cf
1461:Bk
1456:Cm
1451:Am
1446:Pu
1441:Np
1431:Pa
1426:Th
1421:Ac
1413:8s
1410:7p
1407:6d
1404:5f
1396:Ra
1391:Fr
1386:Rn
1381:At
1376:Po
1371:Bi
1366:Pb
1361:Tl
1356:Hg
1351:Au
1346:Pt
1341:Ir
1336:Os
1331:Re
1321:Ta
1316:Hf
1311:Lu
1306:Yb
1301:Tm
1296:Er
1291:Ho
1286:Dy
1281:Tb
1276:Gd
1271:Eu
1266:Sm
1261:Pm
1256:Nd
1251:Pr
1246:Ce
1241:La
1233:7s
1230:6p
1227:5d
1224:4f
1216:Ba
1211:Cs
1206:Xe
1201:I
1196:Te
1191:Sb
1186:Sn
1181:In
1176:Cd
1171:Ag
1166:Pd
1161:Rh
1156:Ru
1151:Tc
1146:Mo
1141:Nb
1136:Zr
1122:6s
1119:5p
1116:4d
1109:Sr
1104:Rb
1099:Kr
1094:Br
1089:Se
1084:As
1079:Ge
1074:Ga
1069:Zn
1064:Cu
1059:Ni
1054:Co
1049:Fe
1044:Mn
1039:Cr
1029:Ti
1024:Sc
1015:5s
1012:4p
1009:3d
1002:Ca
992:Ar
987:Cl
972:Si
967:Al
958:4s
955:3p
948:Mg
943:Na
938:Ne
904:3s
901:2p
894:Be
889:Li
880:2s
873:He
859:1s
853:s
845:p
842:p
839:p
836:p
833:p
825:d
822:d
819:d
816:d
813:d
810:d
807:d
804:d
801:d
793:f
790:f
787:f
784:f
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778:f
775:f
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2764:(
2748:2
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2730:–
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2629:–
2625:n
2616:Z
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2481:Z
2476:.
2462:(
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2062:(
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2011:(
1977:(
1957:(
1937:(
1911:)
1906:·
1900:·
1894:·
1888:·
1882:·
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1870:·
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1326:W
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982:S
977:P
933:F
928:O
923:N
918:C
913:B
868:H
849:s
829:p
797:d
753:f
730:e
723:t
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664:-
635:(
589::
585:@
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569:–
556:-
533:(
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499:–
432:(
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400:–
229:(
225:–
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115:(
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