User talk:2409:4055:2E03:282A:B6DF:F904:9C0:E904

September 2020
Hello, I'm Kj cheetham. An edit that you recently made to Lanthanide contraction seemed to be a test and has been removed. 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! Kj cheetham (talk) 16:07, 19 September 2020 (UTC)