User talk:223.186.49.175

October 2020
Please refrain from making unconstructive edits to Wikipedia, as you did at History of the periodic table. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. Favonian (talk) 16:03, 19 October 2020 (UTC)