User talk:81.99.7.174

May 2024
Hello, I'm Johand199. An edit you recently made to Isotopes of lead seemed to be a test and has been removed. If you want more practice editing, the sandbox is the best place to do so. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thank you. Johand 199 (Talk)  19:19, 3 May 2024 (UTC)