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.
The 16th group of the periodic table is named after its first element as an oxygen group or also as a chalcogen (translated from the Greek "ore-forming"). This group includes the elements oxygen, sulfur, selenium, tellurium, radioactive polonium and artificial produced livermorium.
back to the periodic table
back to the start page for the year of the periodic table
to our brochure Chemistry of the Elements
published June 2019 with articles on 43 elements (7 MB, 160 pages)
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
