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1044:- "Tc-99" is international too (because it uses the symbol not the English name), and does not use superscript so is more internet-friendly. AFAIK, this notation is not ambiguous, it has no other meaning. But it cannot be used in chemical formulae, all right. (note: does this form need further research & justification?).
447:
One these columns fill up, I wonder what nomenclature we'll use in the future. I just refer to them as "cerium and thorium", "praseodymium and protactinium", etc. for now. I'd maybe say they're an "inner group 3" and number them something like 3-I, 3-II, 3-III... 3-XIV (or some other convention), but
372:
Because of the increase of nuclear charge across each of the transition series, the B metals are distinguished from the early A metals by their much weaker tendency to form ions or to form compounds with the non-metals…This feature is particularly marked in the final row of B metals, Au, Hg, Tl, Pb,
969:
We'd like to collect information on how the current tool is used by....you! How do you yourself and the other maintainers of your project use the web tool? Which of its features do you need? How frequently do you use these features? And what features is the tool missing that would be useful to you?
1139:
Yes, it's accepted, though I find that the majority of recently published journal articles use isotope symbols (Tc) rather than shortened names (Tc-99). Even the fully written out name (technetium-99) is more common in many sources than the shortened version (which is often completely absent). I
569:
shows that the two listings are not similar. Some 18 elements differ re non-zero valences, some 32 differ wrt mentioning a 0 valence, and half a dozen differ wrt bolding i.e. main/nonmain valence. The remaining 118−66 = ~52 elements are OK (= have same valence listing, though sources present may
357:
The extent to which metallic elements mimic boron (in having fewer electrons than orbitals available for bonding) has been a fruitful cohering concept in the development of metalloborane chemistry…Indeed, metals have been referred to as "honorary boron atoms" or even as "flexiboron atoms. The
1266:
that writing "Tc-99", as an id-pattern, is OK in the first sentence (because it defines the isotope, unambiguously, and it is used in RL). Whether (en)wiki should use it in article body text (instead of other id's) I doubt but that is not the issue here.
1080:), but should be reserved for prose. It is a bit more informal, but has the significant advantage of being being read in the same 'order' as you would its common name. No one goes around saying things like "Three atoms of ninety-nine technetium".
373:
Bi, and Po…where the nuclear charge has been built up across the lanthanide as well as the third transition series. In some respects these elements might almost be classed as super-B or C metals. (Phillips and
Williams 1966, p. 459)
1140:
would prefer to follow this seeming convention and use symbols – also for formality and ease of writing formulae. Not sure about internet-friendliness, we have several options to properly render superscripts.
352:
The metalloids, while they are chemically weak nonmetals, show the most metallic character among the nonmetals. For example, on the analogy between B and metals, Greenwood (2001, p. 2057) commented that:
345:
The noble metals begin to show some surprising nonmetallic behaviour e.g. Au sometimes behaves as if it were a halogen, and both Au and Pt are known to form anions e.g. in CsAu, and the Ba platinides (Ba
338:
From the 2.2 baseline, the noble metals and metalloids seem to be inversions relative to each other, and then the frontier metals versus the noble gases, if we just go by ranges over electronegativity.
236:
This category name also refers to the fact the related nonmetals tend to form covalent bonds with metals. Here the word "related" is associated to "covalent", as follows: covalent→shared→related.
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962:! As you may or may not know, we are currently involved in an overhaul of the bot, in order to make it more modern and maintainable. As part of this process, we will be rewriting the
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created, has been nominated for possible deletion, merging, or renaming. A discussion is taking place to decide whether this proposal complies with the
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to be complete; but any "There is more" solution possible? refs, #section links? (to me, layman, the (0) is intriguing so any link is great). -
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that is part of the project. You might have noticed this tool if you click through the links on the project assessment summary tables.
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This chart has blue and red bars spanning the lowest and highest electronegativity values for each of the eight classes of elements.
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I know many would disagree. They don't really form groups for now, but it is a question we might have to think about one day.
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The noble gases become more metallic going down the group, so much so that Rn begins to some cationic behaviour (cf At).
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I asked for nicer reading forms. Do we agree that this format is preferable (use regular words to split bold blocks):
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The second is the x-axis symmetry for the transition metals and metalloids; and active metals and corrosive nonmetals.
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so as to not have to deal with the question of Al, or perhaps I should move it into the active metals category?
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edits added (0) valences to metals, all fine with me. May I suggest we change those values into linked ] in {{
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The first is the y-axis symmetry for the noble metals and noble gases; and the frontier metals and metalloids.
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can & should be done elsewhere in the sentence, good reading prevailing. (Though "... is an isotope of
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guidelines. If you would like to participate in the discussion, you are invited to add your comments at
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717:)? I do not know about this, but I think a wikilink would be great for these specials. A ref maybe? -
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My suggestion was/is: adding this wikilink is good info, at no cost (for the reader). IMO we do not
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That is: list these three id's, in this format (brackets, bolding, punctuation). Linking to basic
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But surely the well-known carbonyls are not the only oxidation-state-0 species of these metals?
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It is a category I created today to organise our isotope articles (for example, mainspace page
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It's a pleasing coincidence that the transition metals line up with the related nonmetals.
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428:), I have added footnote "n/a" because somewhere we better mention this PT habit. That
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Ar for the noble gases, unless astatine is somehow a noble gas in this element scheme.
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You have to remember that we don't write only for technical audiences. Forms like
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If you wish to start a new discussion or revive an old one, please do so on the
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There's a dispute concerning the display of the name of elements/isotopes in
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We could use a refined or crispy definition wrt 'main' oxidation states. -
1056:
Todo: comment & research & make sure "Tc-99" is an accepted form.
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That said, either form are fine, as long as the article is consistent.
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I will not restore incorrect grammar and syntax to the infobox, no.
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Thanks for this inviatation (at last, I may say). Please revert your
388:
Greenwood NN 2001, 'Main group element chemistry at the millennium',
577:
It would be good if we synchronise the lists. These are the pages:
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The balanced 6-6-5-6 distribution of the nonmetals is pleasing.
484:
At the moment, we maintain the oxidation states in two places:
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The related nonmetals are related by, among other things, the
25:
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is analogous to older references to the transition metals as
664:(maintained manually; eitlinks are in the /checkdata table).
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differ). I note that the List is meticulously maintained by
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Template:List of oxidation states of the elements/datacheck
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The heavier (period 6) frontier metals border on nobility:
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Do I have this right? It wasn't something I was expecting.
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I propose to make the opening starting with this pattern:
114:
for posting to
Knowledge (XXG), but to go into a journal:
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vol. II, Clarendon Press, Oxford
University Press, Oxford
211:
Ebel IL 1938, "Atomic structure and the periodic table",
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Praise be that all category names are relatively short.
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1047:- Bolding the three parts is correct, since they all
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Template talk:Infobox isotope#Infobox title typograpy
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Template talk:Infobox isotope#Infobox title typograpy
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Sb and even Ge are sometimes referred to as metals.
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converse of this relationship is clearly also valid…
222:
Prentice-Hall, 3rd ed., Englewood Cliffs, NJ, p. 848
342:1. Comparing the noble metals with the metalloids:
587:Template:Infobox element/symbol-to-oxidation-state
491:Template:Infobox element/symbol-to-oxidation-state
477:List of oxidation states of the elements/datacheck
614:Template:List of oxidation states of the elements
527:Template:List of oxidation states of the elements
106:Bifold symmetry in the metal-nonmetal progression
1037:- "Tc" uses the symbol, so is the international
958:Hello and greetings from the maintainers of the
365:2. For the frontier metals and the noble gases:
312:There seems to be two kinds of bifold symmetry:
1158:are friendlier to non-technical audiences than
305:Electronegativity bars for element categories
8:
970:We have collected all of these questions at
227:The atomic structure chart of the elements,"
392:Dalton Transactions, issue 14, pp. 2055–66
1077:Tc-99 and the like is accepted (see e.g.
954:Request for information on WP1.0 web tool
713:}}? Maybe a more specific link in there (
276:Interesting. I just corrected At ---: -->
18:Knowledge (XXG) talk:WikiProject Elements
574:, providing many to-the-point sources.
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218:Quagliano JV & Vallarino LM 1969,
44:Do not edit the contents of this page.
7:
381:Phillips CSG and Williams RJP 1966,
110:I finally believe I've nailed this,
1002:(65) pages, their first sentence.
974:where you can leave your response.
1041:id of the isotope, in formal form.
24:
780:has been nominated for discussion
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1033:" is a nice default candidate).
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472:Data compare & check is at:
390:Journal of the Chemical Society,
29:
1241:"EPA Facts About Technetium-99"
1116:) 00:28, 31 October 2019 (UTC)
695:21:22, 28 September 2019 (UTC)
679:09:45, 17 September 2019 (UTC)
405:01:36, 20 September 2019 (UTC)
333:12:38, 19 September 2019 (UTC)
291:10:40, 10 September 2019 (UTC)
213:Journal of Chemical Education,
190:Ru, Rh, Pd, Ag, Os, Ir, Pt, Au
1:
1277:00:29, 23 November 2019 (UTC)
1000:Category:Isotope content page
793:Category:Isotope content page
778:Category:Isotope content page
432:looks strange to outsiders. -
271:12:00, 7 September 2019 (UTC)
1218:23:26, 30 October 2019 (UTC)
1190:23:22, 30 October 2019 (UTC)
1162:. See past FA reviews, like
1150:21:52, 30 October 2019 (UTC)
1133:00:52, 31 October 2019 (UTC)
1104:21:27, 30 October 2019 (UTC)
1070:21:04, 30 October 2019 (UTC)
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914:20:47, 11 October 2019 (UTC)
895:11:27, 11 October 2019 (UTC)
824:is redirect or content?). -
419:Periodic table (group names)
230:Canadian Chemical Education,
1118:(why not try AGF, headbomb
834:22:17, 9 October 2019 (UTC)
767:21:52, 4 October 2019 (UTC)
741:21:34, 4 October 2019 (UTC)
727:21:17, 4 October 2019 (UTC)
462:03:35, 2 October 2019 (UTC)
442:22:06, 1 October 2019 (UTC)
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609:List of oxidation states
452:― Дрейгорич / Dreigorich
281:― Дрейгорич / Dreigorich
139:Groups 1–3, Ln, An, (Al)
248:I'm eschewing the term
215:vol. 15, no. 12, p. 575
902:earlier, objected edit
426:Group (periodic table)
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178:B, Si, Ge, As, Sb, Te
127:He, Ne, Ar, Kr, Xe, Rn
1156:Pu-238 is found in...
839:Opinions required at
468:Oxidation states diff
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250:post-transition metal
42:of past discussions.
1021:) is an isotope ..."
867:. Please comment at
810:the category's entry
559:Oxidation state#List
383:Inorganic chemistry,
241:H-C-P-N-S-Se thread.
636:Compare & check
565:Unfortunately, the
155:Most of groups 4–11
143:Corrosive nonmetals
521:(in the infoboxes)
430:blank group number
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199:The category name
162:H, C, N, P, S, Se
1160:Pu is found in...
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817:page. Thank you.
297:Electronegativity
201:related nonmetals
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159:Related nonmetals
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1060:Comments? -
124:Noble gases
36:This is an
1264:I conclude
1228:References
1031:technetium
1027:technetium
960:WP 1.0 Bot
702:Burzuchius
572:Burzuchius
567:/datacheck
410:Group: n/a
220:Chemistry,
175:Metalloids
98:Archive 45
90:Archive 43
85:Archive 42
79:Archive 41
73:Archive 40
68:Archive 39
60:Archive 35
1164:plutonium
1108:That's -
582:Infoboxes
424:(article
1301:) is ...
1197:Headbomb
1169:Headbomb
1083:Headbomb
1049:identify
989:Isotopes
976:Walkerma
964:web tool
925:Headbomb
874:Headbomb
796:, which
813:on the
656:history
629:history
602:history
540:history
504:history
39:archive
1293:(also
1269:DePiep
1125:DePiep
1110:DePiep
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906:DePiep
826:DePiep
759:DePiep
719:DePiep
687:DePiep
671:DePiep
434:DePiep
397:Sandbh
325:Sandbh
263:Sandbh
1299:Tc-99
1244:(PDF)
1019:Tc-99
707:these
653:links
626:links
599:links
548:watch
544:links
512:watch
508:links
16:<
1297:and
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1146:talk
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1066:talk
1039:name
980:talk
910:talk
830:talk
763:talk
755:have
737:talk
723:talk
691:talk
675:talk
650:talk
647:edit
623:talk
620:edit
596:talk
593:edit
552:logs
536:talk
532:edit
516:logs
500:talk
496:edit
457:Talk
438:talk
401:talk
329:talk
286:Talk
267:talk
1166:.
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871:.
798:you
524:2.
488:1.
414:In
261:--
112:not
1295:Tc
1275:)
1211:·
1207:·
1203:·
1183:·
1179:·
1175:·
1148:)
1131:)
1121:?)
1097:·
1093:·
1089:·
1068:)
1017:,
1015:Tc
982:)
939:·
935:·
931:·
912:)
888:·
884:·
880:·
865:}}
859:{{
855:}}
849:{{
832:)
765:)
739:)
725:)
693:)
677:)
611::
584::
550:|
546:|
542:|
538:|
534:|
514:|
510:|
506:|
502:|
498:|
480:}}
474:{{
440:)
422:}}
416:{{
403:)
331:)
269:)
94:→
64:←
1271:(
1267:-
1261:Y
1215:}
1213:b
1209:p
1205:c
1201:t
1199:{
1187:}
1185:b
1181:p
1177:c
1173:t
1171:{
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1112:(
1101:}
1099:b
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927:{
908:(
892:}
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876:{
857:/
843:.
828:(
761:(
735:(
721:(
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700:@
689:(
673:(
669:-
658:)
645:(
631:)
618:(
604:)
591:(
561:)
554:)
530:(
518:)
494:(
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347:2
327:(
265:(
50:.
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