- This information is outdated. As of 2021, English Wikipedia (enwiki) uses primarily block-coloring.
See en:Help:Periodic table classifications in the English Wikipedia.
- Outdated
Group 3 constitution
Historical categories
- Outdated
- Changes per April 2018
Per 25 April 2018, the 2013-scheme has been changed. Categories "polyatomic nonmetal" and "diatomic nonmetal" are removed (abandoned), and are replaced by category "reactive nonmetal". The 11 elements are all in this single category, illustrated with a (new, different) yellow color. Description is at :en:Talk:Nonmetal. The change was concluded here, an overview of the long and large discussions is here.
Abandoned per April 2018.
Change is in nonmetal categories: polyatomic, diatomic into reactive nonmetals. Visually: the color green has disappeareed.
Historical (2018–2020)
One outstanding feature is the classification of metallicity (metals-metalloids-nonmetals, their and subdivisions), together with its coloring scheme.
en:Metal | en:Metalloid#cccc99
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en:Nonmetal | unknown chemical properties#e8e8e8
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en:Alkali metal#ff9d9d
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en:Alkaline earth metal#ffdead
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en:Lanthanide#ffbfff
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en:Actinide#ff99cc
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en:Transition metal#ffc0c0
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en:Post-transition metal#cccccc
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en:Reactive nonmetal#f0ff8f
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en:Noble gas#c0ffff
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Note: Alkali metals were updated on 1 December 2020 for readability; the color before then is same as below
Historical categories (2013–April 2018)
en:Metal | en:Metalloid#cccc99
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en:Nonmetal | unknown chemical properties#e8e8e8
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en:Alkali metal#ff6666
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en:Alkaline earth metal#ffdead
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en:Lanthanide#ffbfff
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en:Actinide#ff99cc
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en:Transition metal#ffc0c0
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en:Post-transition metal#cccccc
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en:Noble gas#c0ffff
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Subcategories
This category has the following 4 subcategories, out of 4 total.