Talk:Atomic number

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"Atomic Number (Z)"[edit]

Why it is Z? or not for example M or P? Thx in advance for answering me. Martin from Poland.

  • I was looking at other sources and I cannot find a reason for any letter to be placed after the atomic number - there is no unit. GotPSP 21:56, 31 January 2007 (UTC)
  • Maybe it is because the German word for number begins with a Z, but I'm just guessing. Itub 08:39, 8 March 2007 (UTC)
  • nope, the german word for number is number, oddly enough. Z could just be the random letter they picked.--Scorpion451 20:24, 16 June 2007 (UTC)
However the German word for integer is zahlen. See integer which zahlen redirects to. This may be relevant as the atomic number is of course an integer. I concur with the next comment, Z is not a unit, merely a symbol, similarly A and N. I would assume A comes from atom and N comes from neutron. It doesn't hurt to think of it this way if it helps you remember which is which.Puzl bustr (talk) 08:50, 31 October 2009 (UTC)
  • Z is not the unit of the atomic number it is the variable that stands for the atomic number, for example: for hydrogen Z=1. "m" is used as the magnetic moment for atomic orbitals and "p" is a type of orbital, since all of these terms are used together when referring to the structure of an atom they must have different symbols. --Whmice (talk) 11:43, 22 March 2008 (UTC)

Suggest 1 possible wiki link and 13 possible backlinks for Atomic number.[edit]

An automated Wikipedia link suggester has some possible wiki link suggestions for the Atomic_number article:

  • Can link strict order: ...rities in chemistry, it was noticeable that placing them in strict order of [[atomic weight|atomic mass]] resulted in some mismatche...
Not appropriate--Patrick 14:14, Dec 1, 2004 (UTC)

Additionally, there are some other articles which may be able to linked to this one (also known as "backlinks"):

  • In Albert Einstein, can backlink atomic number: ...suring the mass of atomic nuclei and dividing them by their atomic number, both of which are easily measured, one can calculate the b...
  • In August 29, can backlink atomic number: ...1982]] - The synthetic [[chemical element]] [[Meitnerium]], atomic number 109, is first synthesized at the [[Gesellschaft für Schweri...
  • In Cahn Ingold Prelog priority rules, can backlink atomic number: ...ity corresponding to its atomic number—the higher the atomic number, the higher the priority. ...
  • In Gamma ray, can backlink atomic number: ...losion. Compton scattering is relatively independent of the atomic number of the absorbing material. ...
  • In Organic nomenclature, can backlink atomic number: ...) and an amine (NH<sub>2</sub>). The alcohol has the higher atomic number, and takes priority over the amine. The suffix for an alcoh...
  • In Optical isomerism, can backlink atomic number: ...n of polarized light and the ''R''/''S'' scheme is based on atomic number. One cannot predict the other....
  • In Proton, can backlink atomic number: ...ested that the hydrogen nucleus, which was known to have an atomic number of 1, was an elementary particle. This he named proton, fr...
  • In Radioactive waste, can backlink atomic number: elements -- mostly plutonium. These elements have an atomic number greater than uranium -- thus transuranic...
  • In Valency, can backlink atomic number: ... List of valencies for the first 103 elements in order of atomic number:...
  • In Decay product, can backlink atomic number: ...ntually to a stable nuclide. For elements above [[lead]] in atomic number, this is nearly always an [[isotope]] of lead. Lead is gene...
  • In Victoria University of Manchester, can backlink atomic number: ...ritish universities. * [[Henry Moseley]], who identified atomic number as the nuclear charges. He studied under Rutherford and bri...
  • In Conventional X-ray generator, can backlink atomic number: ...e the electrons to be accelerated #a target made of a high atomic number, high melting point metal ...
  • In Transuranic elements, can backlink atomic number: Chemical element with an atomic number of 93 or more – that is, with a greater number of protons i...

Notes: The article text has not been changed in any way; Some of these suggestions may be wrong, some may be right.
Feedback: I like it, I hate it, Please don't link toLinkBot 11:31, 1 Dec 2004 (UTC)

I've created backlinks for the list suggested above.--andersonpd 13:00, 29 October 2005 (UTC)

Expansion of the article[edit]

can u plz further explain?—The preceding unsigned comment was added by (talk) 10:21, 31 January 2006.

Yes I put the expansion tag in the article. BTW I changed the name of this discussion to a more apporite name for the topic.---Scott3 Talk Contributions Count: 950+ 01:30, 11 September 2006 (UTC)
what is there to explain? can you say whats not understood? —Preceding unsigned comment added by Whmice (talkcontribs) 16:29, 13 February 2008 (UTC)

Merge material from List of elements by atomic number[edit]

I don't see a reason for this list to exist separately when the existing atomic number article is requested for expansion. Catchpole 12:58, 9 December 2006 (UTC)

  • I do. There's a lot of information about the significance of the atomic number that should be added instead. The list serves as a stand-alone reference of all kinds of chemical data, and just happens to be sorted by atomic number (the same list exists sorted by atomic weight, symbol, and name). --Spangineerws (háblame) 23:05, 9 December 2006 (UTC)
  • I agree that this list should be merged into the Atomic number article. There is no justification for a number of lists of elements, each sorted by a different criterion, and each constituting a separate article. The reason for the specific list is the sorting criterion and should therefore be a part of that.--EvenT 15:30, 30 December 2006 (UTC)
  • I also agree with this proposal. However, the table, so sorted should appear on the Atomic_number page as it is useful. When somebody needs this sorting, one seeks for the word Atomic Number and not the full phrase "List of Elements by atomic number". Today I did the same thing and out of the search I had to make trial and error to reach the correct page. -- Dr. Dinesh Karia 17:34, 18 February 2007 (UTC)
  • I disagree. Adding it to the other page would make the other page unwieldy. However a link to this list should certainly appear on the other page. When studying the periodic table, it is good to approach the task from a variety of angles. This list is very readable and has a set of very convenient links. It is much easier to scan than a regular periodic table.
  • I agree with the previous statement that pages should remain seperate with a prominent link between the two. The primary sorting system for the elements is the atomic number, so if any should remain a seperate page unto itself it should be the list by atomic number. There is much to be said for the value of a legible, well made list. To require the sorting criterion on the list is comparable to combining the page for the alphabet with the "list of elements by name". Combining the two would make two useful pages into one hideous one.--Scorpion451 20:21, 16 June 2007 (UTC)
  • Absolutely disagree with merging. Most notably, this article is at 5,095 bytes and the list is at 26,009 bytes. Add them you get 31,194. Generally, you don't want to exceed 32 KB and considering atomic number is very thin as an article means that a featured article would require adding a lot of material. Adding a lot of material and the list of elements by atomic number would blow 32 KB away and make it a very large article. I also prefer the list be a list so it serves as a reference instead of being cluttered up with lots of prose. You don't go to List of elements by atomic number to read about atomic number. You go to atomic number for that. Cburnett 13:08, 3 July 2007 (UTC)
  • Disagree with merge, which is madness. In the article on city are we going to have a list of cities? In the article on automobile are we to have an embedded list of automobiles? No in both cases, although there are prominent list articles linked as {{main}} articles, in both of the above. There is absolutely nothing wrong with stand-alone list articles, see WP:LIST. Unless they are short, it is very inappropriate to use them to pad-out a topic article. The list of elements is fairly short, and I could (otherwise) suggest sticking it in here as a collapse box as we do with coin mintage numbers in some coin articles. But we already have a number of really excellent list articles on the elements and nuclides already, and putting in one more simple list of elements here would be just gilding the lilly. Put in more {{main}} links and see-also's if you must. But don't add hyperredundant crap just because you can. SBHarris 17:21, 18 June 2012 (UTC)
  • I agree that this list should be merged into the Atomic number article.--AlfaRocket (talk) 19:49, 27 August 2017 (UTC)


Why does this article include a paragraph on atomicity? Should it be expanded into a section that ties in with Z? (And if so, how?) Or would anyone mind if I just deleted it? Querl 02:46, 21 February 2007 (UTC)

  • I had a similar thought when I did a cleanup of the article. The paragraph seems like it belongs in some article, but it wasn't immediately apparant to me which one. It's more closely related to molecules than to atomic number. -- Mainstream Nerd 03:48, 21 February 2007 (UTC)

Z, N and A italic?[edit]

Is it not the accepted convention to italicise Z, N and A? If so, then this article should be amended to conform with this convention. —Preceding unsigned comment added by (talk) 09:05, 6 April 2009 (UTC)


FIAT: In "History" the sentence "Such an ordering is not necessarily a numbering, but can be used to construct a numbering by fiat." - What is a "fiat"? Can I suggest that this either needs explaining, linking to a definition, or changing for something that can be understood by a lay person such as myself unless in my ignorance I am missing that this is a typo. — Preceding unsigned comment added by (talk) 20:39, 23 August 2012 (UTC)

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