User talk:85.240.100.169

May 2021
Hello, I'm William Avery. I wanted to let you know that I reverted one of your recent contributions—specifically this edit to Fluorine—because it did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help desk. Thanks. William Avery (talk) 20:13, 2 May 2021 (UTC)