This image is a derivative work of the following images: File:Periodic_table.svg licensed with PD-self 2013-08-27T07:50:57Z DePiep 779x424 (58693 Bytes) Corrected...
derivative work of the following images: File:Fluorine_with_significant_periodic_table_neighbors.svg licensed with PD-self 2013-09-14T06:52:59Z Begoon 461x656...