This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Electronegativity el. Pauling Transferred from org el transferred to Commons by User MARKELLOS using de php CommonsHelper br Original text original upload date xhmikos Original uploader was Xhmikos at org el PDAUTHOR Xhmikos Original upload log page el CE CE CE CF CE AC CE CE BB CE CE BA CF CF CE CF CE BD