SELENIUM

Selenium

Selenium is a chemical element with symbol Se and atomic number 34. It is a nonmetal with properties that are intermediate between those of its periodic table column-adjacent chalcogen elements sulfur and tellurium. It rarely occurs in its elemental state in nature, or as pure ore compounds. Selenium was discovered in 1817 by Jöns Jacob Berzelius, who noted the similarity of the new element to the previously known tellurium .

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selenium

Noun

  1. A nonmetallic chemical element (symbol Se) with an atomic number of 34.


The above text is a snippet from Wiktionary: selenium
and as such is available under the Creative Commons Attribution/Share-Alike License.

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