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I went through Category:Chemical compounds by element and diffused each transition metal categories unless: the transition metal has one main oxidation state (like zinc), which would make diffusion pointless because almost all of the pages would go into the same category; has five or so main oxidation states (like manganese), which means that some of the categories would be too small to be practical; or has too few members for diffusion to be practical (My cutoff value was 20.). Are there any metals that I didn't diffuse that others think I should diffuse. Also, Category:Iron(Ⅱ,Ⅲ) compounds is significantly smaller than I figured it would be when I started diffusing iron; should I have the category deleted and return its members to Category:Iron compounds? — Preceding unsigned comment added by The Nth User (talk • contribs) 06:09, 25 February 2019 (UTC)[reply]
