This image is a derivative work of the following images: File:Electron_shell_037_Rubidium.svg licensed with Cc-by-sa-2.0-uk 2006-04-17T17:01:06Z File Upload
DescriptionElectronshell037Rubidium.svg English: Electronshell diagram for rubidium, the 37th element in the periodic table of elements. Source File:Electron