Selenium: ke revisions ke biich ke antar

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Rekha 34:
<gallery>
File:Selen 1.jpg|Black, gray, and red forms of selenium
File:Ga2Se3-BulkGaSeBulk.jpg‎.jpg|Gallium selenide used in [[semiconductor]]s
File:Tiemannite-199865.jpg|Mercury selenide as a mineral
File:Chalcomenite-199978.jpg|Copper selenide as a mineral