Selenium is often described in connection with dietary supplements. In the series "What is actually ..." on our Fascination Chemistry website, we present the element selenium in an easy-to-understand way.
Photo: Black, gray and red selenium (de: User: Tomihahndorf, Selen 1, marked as public domain, Wikimedia Commons )
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last modified: 10.05.2021 16:29 H from K.J.Schmitz
