User talk:Doctor Lipschitz

Welcome to Wikipedia. Everyone is welcome to contribute to the encyclopedia, but when you add or change content, as you did to the article Chemical element, please cite a reliable source for your addition. This helps maintain our policy of verifiability. See Citing sources for how to cite sources, and the welcome page to learn more about contributing to this encyclopedia. Thank you. Materialscientist (talk) 22:23, 4 October 2011 (UTC)

This is your only warning; if you vandalize Wikipedia again, as you did at Alvirne High School, you may be blocked from editing without further notice. -- Jayron  32  03:01, 6 October 2011 (UTC)