Talk:Periodic table

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Featured article Periodic table is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Wikipedia community. Even so, if you can update or improve it, please do so.
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Alignment and centering[edit]

I propose using

  • <div style="clear: right; float: right; margin-left: 20px; font-size:85%; width:auto;"> and
  • {{replace||style{{=}}"margin:0 auto;"|style{{=}}"margin:0 2px !important;"}}

for three template tables for group 3 variants, and

  • <div style="clear: right; float: right; margin-left: 20px; font-size:85%; width:auto;">,
  • class="wikitable", style="text-align:center"|,
  • |center|x100px|Periodic table in 18 columns with group defined as ...,
  • {{center|<small>{{nowrap|La and Ac below Y}}</small>}} etc.

for other three or so non-template tables so that they are centered and have proper padding on mobile view.

Caption should be broken using <br /> because width:auto; will ensure box right border is next to the right part of the system (thus centering it) but caption can expand box to the right and should be no wider than system.

-- (talk) 18:34, 28 June 2017 (UTC)

RfC: Colour group 12 as post-transition metals[edit]

I am seeking comments on a proposal to color code the group 12 elements as post-transition metals in the Wikipedia periodic table, rather than transition metals as they are currently color coded.

The RfC can be found here. Sandbh (talk) 23:07, 9 August 2017 (UTC)

RfC: Replace categories of poly/diatomic nonmetal with less active/active nonmetal[edit]

I am seeking comments on a proposal to change the name and composition of two of the colour categories appearing on our periodic table, as follows:

From Polyatomic nonmetal
C, P, S, Se
Diatomic nonmetal
H, N, O, F, Cl, Br, I
To Less active nonmetal
H, C, N, P, S, Se
Active nonmetal
O, F, Cl, Br, I

The RfC can be found here. Sandbh (talk) 23:55, 9 September 2017 (UTC)

TFA rerun[edit]

Any objections to throwing this article into the current pile of potential TFA reruns for next year (currently being developed at User:Dank/Sandbox/2)? Any cleanup needed? - Dank (push to talk) 13:55, 10 September 2017 (UTC)

Above an RfC is announced, I'd prefer waiting for its result implemented (quite a big thing in PT world). Also, in the longer run we'd like/need to improve the background colors of the graphic PT. 2018? OTOH, Category:FA-Class chemical elements articles has 26 articles, maybe others can be TFA'ed earlier. btw, see also Wikipedia talk:WikiProject Elements#TFA_reruns (WT:ELEM). -DePiep (talk) 16:55, 10 September 2017 (UTC)
Sure, DePiep, I'll remove it from the list I'm working on this week. - Dank (push to talk) 17:20, 10 September 2017 (UTC)