User talk:2409:4064:2590:7EE8:AF1E:A821:27B7:A00

Recent edit to Isotopes of carbon
Thank you for your contribution to Wikipedia. I noticed that you have posted content to the Isotopes of carbon article in a language other than English. When on the English-language Wikipedia, please always use English. Thank you! Tolly 4  bolly  08:35, 4 December 2019 (UTC)