Talk:Periodic table/Archive 3

message: why there is only at most 8 electrons in the outermost shell?but the previous shell can have 18,32... electrons??
:There are at most 8 electrons in the outermost shell because electrons like being at the lowest energy state possible, and energy states are determined by the shell and the subshell according to the Aufbau principle. After the p subshell of shell n fills up with 6 electrons, there are 8 electrons in the shell because the s subshell already holds 2 and 2+6=8. The next highest energy state for an electron to occupy after subshell np is filled is in the (n+1)s subshell. Why? Because the Aufbau principle says so. Where does the Aufbau principle come from? It's a really complicated result of the size and the shape of atomic orbitals. And where do the solutions for the sizes and shapes of these orbitals come from? From solutions to the Schrödinger Equation. And the Aufbau principle isn't always so simple either. The outermost shell of the ground state of gaseous atomic palladium has 10 electrons in the 4d subshell and none in 5s. There's an exception to the rule of 8 right there. Flying Jazz 06:48, 9 December 2005 (UTC)
thread_title:  why there is only 8 groups in periodic table and not more??? 

message: http://en.wikipedia.org/wiki/Talk:Alternative_periodic_tables Many complexities and errors in Periodic system of elements are already corrected
--83.237.230.80 20:22, 5 January 2006 (UTC)
thread_title:  There are already long-awaited interesting discoveries among the last alternative periodical tables 

message: There is, on this page, a link to List of elements by atomic number and Table of chemical elements.  These both appear to contain roughly the same information.  Should the two articles be merged, and one redirected to the other?   --RobertG ♬ talk 10:16, 5 December 2005 (UTC)
replies: text: The table article is a recent addit. (copy from German wiki) addded by an anon. Needs more cleaning.) There is considerable redundancy and a merge would be a good idea. But, the table width is going to be a bit much. Vsmith 12:37, 5 December 2005 (UTC)
replies: text: There are lists by name, symbol, number, atomic mass, boiling point, melting point, density, I don't think there's need for yet another version comparing them all. It definitely wasn't necessary to put two versions of similar tables into articles that already contained one (list of elements by symbol, list of elements by name) or one into an article that is not the proper place (chemical element. any others?) However my main concern is that the data is unsourced and is contrary to the already established chemical elements data references (and plain wrong in some cases). Femto 16:56, 5 December 2005 (UTC)
thread_title:  Duplicate articles? 

message: Is there an alternate system where the groups are given roman numerals and the halogens are Group VII?  That's how my reprint of Linus Pauling's General Chemistry shows it. RJFJR 20:53, 10 December 2005 (UTC)
replies: text: I think I see what you are looking for in this article. The roman-numeral system was discontinued by IUPAC because it was different in Europe and America. --Orzetto 01:19, 11 January 2006 (UTC)
thread_title:  Group VII? 

message: I have reverted the edits by User:Tarantola in accordance with Wikipedia:No original research. Femto 12:40, 14 January 2006 (UTC)
thread_title:  Tarantola table 

message: This is one of my first posts, so I want to know where all the code for the Periodic Table is held. 'Cause I wanna start my own elements. On my userpage, of course. Reply and get a crossiant(sic?). Thank you. -- Homfrog 01:19, 20 January 2006 (UTC)
replies: text: At great personal risk and in exchange for a croissant (vanilla, please), I give you the location of the secret code: Template:Periodic table. Give a word if you need assistance with the decipherment. --Eddi (Talk) 02:14, 20 January 2006 (UTC)
thread_title:  Hello? 

message: selenium 34Se      	bromine  35Br      	krypton  36Kr 
tellurium52Te      	iodine   53I       	xenon    54Xe 
polonium 84Po      	astatine 85At      	radon    86Rn 
ununhexium  116Uuh 	ununseptium 117Uus 	ununoctium  118Uuo 
I have made a test version of the periodic table with links to Isotopes of X as well as the article X for each element X, plus popup titles with chemical series, occurrence, and physical state (e.g. Halogens; Primordial; Gas), at User:Eddideigel/Periodic test. The data behind the table includes atomic number, element name, chemical symbol, atomic mass, physical state, chemical series, and occurrence — all data copied from Periodic table (large version). The layout of the table can be changed easily by exchanging all occurrences of  with another template, but leave the data intact. Any comments regarding layout and usefulness are welcome here, or at WikiProject Elements, or the talk page of the test table. --Eddi (Talk) 14:40, 20 January 2006 (UTC)
thread_title:  Table layout test 

message: I found the electron shells table insufficiently explained.  The table should list right next to it what the heck it all means.  Tempshill 17:56, 26 January 2006 (UTC)
thread_title:  Electron shells table 

message: :Mendeleev was later vindicated by the discovery of the electronic structure of the elements in the late 19th and early 20th century.
I'd like the article to mention whether Mendeleev lived to see this, in the interest of adding the human angle to the history section of the article.  If he did, there must be a nice quote from him about it.  Like "Told y'all", or its equivalent in Russian.  Tempshill 17:57, 26 January 2006 (UTC)
thread_title:  Mendeleev question 

message: I suggest the Solid Bordered elements are those with half-lives longer than the age of the earth.  I know Uranium Thorium and Plutonium have no stable isotopes at all, older than the earth or not.
—Preceding unsigned comment added by 12.41.204.3 (talk • contribs) 20:01, 27 January 2006 (UTC)
thread_title:  Solid Borders 

message: Template:Periodic table has been nominated for deletion. You are invited to comment on the discussion at Wikipedia:Templates for deletion. Thank you.
--Eddi (Talk) 02:03, 28 January 2006 (UTC)
replies: text: The result of the debate was DELETE. The template's talk page was preserved in Talk:Periodic table (standard). --Eddi (Talk) 10:23, 9 February 2006 (UTC)
thread_title:  TfD nomination of Template:Periodic table 

message: See also discussion on changes proposed at Talk:Periodic table (standard)#Layout. Femto 13:13, 12 February 2006 (UTC)
thread_title:  Layout 

message: Some new elements have been added. I think they will never be discovered and have no use at all so they should be deleted! Unsepthexium is one of them.--Stone 08:11, 30 March 2006 (UTC)
replies: text: Folks, this is stoopid. These are not "new elements", they are just systematic IUPAC names which *would* be used in the inertim if these elements were discovered, before the scientific community agreed proper names for them. All that needs to be said is an explanation of the systematic naming scheme (which as you can see, is just using Greek and Latin to make a fancy way of saying "One-hundred-and-thirty-six-ium" etc etc--feline1 09:55, 30 March 2006 (UTC)

text: See also related Wikipedia talk:WikiProject Elements#Elements beyond Rg and Wikipedia:Articles for deletion/Unsepthexium Femto 12:26, 30 March 2006 (UTC)
thread_title:  Unsepthexium