User talk:2600:8807:5100:1D9:1D03:167B:B45B:9E9C

September 2020
Hello, I'm ComplexRational. Your recent edit(s) to the page Period 4 element appear to have added incorrect information, so they have been removed for now. If you believe the information was correct, please cite a reliable source or discuss your change on the article's talk page. If you would like to experiment, please use the sandbox. 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. ComplexRational (talk) 17:15, 9 September 2020 (UTC)
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