User talk:2402:D000:8100:89EB:2554:BD52:167A:86BA

November 2022
Hello, I'm ComplexRational. An edit that you recently made to Electron configurations of the elements (data page) seemed to be a test and has been reverted. If you want to practice editing, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Thanks! Complex / Rational 15:03, 5 November 2022 (UTC)