Category edit
- This section has been deprecated; due to the bewildering variety of slightly different categories in the literature and disagreement on their boundaries, a strict scheme based on blocks has been adopted as of January 2021.
- Note: as of 17 August 2013, the English wikipedia has changed categorisation and background colors of nonmetal elements. Below is the new categorisation scheme. Differences are about these old categories: "other nonmetal", "halogen", "post-transition metals"
Nonmetals are subdevided in diatomic nonmetals, polyatomic nonmetals (and noble gases, unchanged). The category other/poor metals is renamed into post-transition metals without further changes. This is the new scheme:
| Metal | Metalloid#cccc99
|
Nonmetal | unknown chemical properties#e8e8e8[note 1] | |||||||||
Alkali metal#ff9d9d
|
Alkaline earth metal#ffdead
|
Inner transition metal | Transition metal#ffc0c0
|
post-transition metal#cccccc
|
Polyatomic nonmetal#a1ffc3
|
Diatomic nonmetal#e7ff8f
|
Noble gas#c0ffff
| |||||
Lanthanide#ffbfff
|
Actinide#ff99cc
|
Superactinide [note 2] | Eka-superactinide [note 2] | |||||||||
predicted#d8bcbc
|
predicted#ffecd3
|
[note 2] | [note 2] | predicted#d1ddff
|
predicted#c6dd9d
|
predicted#ffe2e2
|
predicted#d8d8d8
|
predicted#e2e2aa
|
predicted#d0ffe1
|
predicted#f2ffc2
|
predicted#ddffff
| |
Usage edit
- See for example: {{compact extended periodic table}}
- Example {{Periodic table (32 columns, micro)}}, extended:
Earlier category scheme edit
Earlier categorisation & color scheme for the English wikipedia (before 17 August 2013)
| ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||||||||||||||||||||||||||||||||
Categories, reduced set edit
When a reduced category set, or more general category set, is used, below are their color legends. It is unadvised to use different category levels (different legend rows) in a single table.
Metal#eee8aa
|
Metalloid#cccc99
|
Nonmetal#b0e0e6
|
unknown chemical properties#e8e8e8[note 1] | |||||||||
Alkali metal#ff9d9d
|
Alkaline earth metal#ffdead
|
Inner transition metal#d8bfd8
|
Transition metal#ffc0c0
|
post-transition metal#cccccc
|
Polyatomic nonmetal#a1ffc3
|
Diatomic nonmetal#e7ff8f
|
Noble gas#c0ffff
| |||||
- ^ Unknown chemical properties (grey) may be used instead of predicted
(As of December 2012[update])