is a derivative work of the following images: File:Electron_shell_039_Yttrium.svg licensed with Cc-by-sa-2.0-uk 2006-04-17T16:59:07Z File Upload Bot...
Commons Attribution-Share Alike 2.0 uktruetrue Derivative works of this file: Capa electrónica 039 Itrio.svg Electron shell 039 Yttrium (el).svg English...
