{"id":2994,"date":"2022-04-30T05:09:56","date_gmt":"2022-04-30T05:09:56","guid":{"rendered":"https:\/\/mdr.foobrdigital.com\/?p=2994"},"modified":"2022-04-30T05:09:56","modified_gmt":"2022-04-30T05:09:56","slug":"selenium","status":"publish","type":"post","link":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/2022\/04\/30\/selenium\/","title":{"rendered":"Selenium"},"content":{"rendered":"\n<p>Selenium<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cdn1.byjus.com\/wp-content\/uploads\/2018\/07\/Selenium_Tile-300x300-150x150.png\" alt=\"Selenium\" width=\"150\" height=\"150\" srcset=\"https:\/\/cdn1.byjus.com\/wp-content\/uploads\/2018\/07\/Selenium_Tile-300x300-150x150.png 150w, https:\/\/cdn1.byjus.com\/wp-content\/uploads\/2018\/07\/Selenium_Tile-300x300-250x250.png 250w, https:\/\/cdn1.byjus.com\/wp-content\/uploads\/2018\/07\/Selenium_Tile-300x300-120x120.png 120w, https:\/\/cdn1.byjus.com\/wp-content\/uploads\/2018\/07\/Selenium_Tile-300x300.png 300w\"><\/p>\n\n\n\n<p>Selenium<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td>Symbol<\/td><td>Se<\/td><\/tr><tr><td>Atomic Number<\/td><td>34<\/td><\/tr><tr><td>Atomic Mass<\/td><td>78.91<\/td><\/tr><tr><td>Discovered by<\/td><td>&nbsp;J\u00f6ns Jacob Berzelius,<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Chemical Properties Of Selenium<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td>Group<\/td><td>16<\/td><td>Melting point<\/td><td>494 K<\/td><\/tr><tr><td>Period<\/td><td>4<\/td><td>Boiling point<\/td><td>958 K<\/td><\/tr><tr><td>Block<\/td><td>p<\/td><td>Density (g cm\u22123)<\/td><td>4.81 g\/cm3<\/td><\/tr><tr><td>Atomic number<\/td><td>34<\/td><td><\/td><td><\/td><\/tr><tr><td>State at 20\u00b0C<\/td><td>Solid<\/td><td><\/td><td><\/td><\/tr><tr><td>Electron configuration<\/td><td>[Ar] 3d<sup>10<\/sup>4s<sup>2<\/sup>4p<sup>4<\/sup><\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What is Selenium?<\/h2>\n\n\n\n<ul><li>Selenium is a chemical element that is placed in the&nbsp;<a href=\"https:\/\/byjus.com\/chemistry\/oxygen\/\">oxygen&nbsp;<\/a>group of the periodic table. It is often found in combination with metals like mercury, copper, silver or lead. It is combined with the physical properties of elements like tellurium and sulfur. This element is rare and composed of 90 parts per billion of the Earth crust. It\u2019s a non-metallic chemical element which is a member of the group 16 of the periodic table.<\/li><li>This element appears in different allotropic forms of which the most popular are \u2013 red amorphous powder, a gray crystalline metal, and a red crystalline material, which is known as a metallic selenium. This gray crystalline form conducts electricity much better in the light than in the dark and can be easily used in photocells. It burns in air and is unaffected by water and dissolves in concentrated nitric acid and alkalis.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Uses Of Selenium<\/h2>\n\n\n\n<ul><li>It serves as a decolorizer when incorporated in small amounts into the glass. When in large quantity, it imparts to glass a useful clear red color in signal lights. It is also used in preparing red enamels for steel and ceramics. And, for vulcanization of rubber to increase resistance to abrasion. Its electrical resistivity of selenium varies over a great range that depends on variables like temperature &amp; pressure, nature of the allotrope, impurities and the method of refining. Most of the&nbsp;<a href=\"https:\/\/byjus.com\/chemistry\/metal\/\">metals<\/a>&nbsp;are insoluble in this element and the impurities of a non-metallic increase the resistivity.<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Selenium Selenium Symbol Se Atomic Number 34 Atomic Mass 78.91 Discovered by &nbsp;J\u00f6ns Jacob Berzelius, Chemical Properties Of Selenium Group 16 Melting point 494 K Period 4 Boiling point 958 K Block p Density (g cm\u22123) 4.81 g\/cm3 Atomic number 34 State at 20\u00b0C Solid Electron configuration [Ar] 3d104s24p4 What is Selenium? Selenium is a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[176],"tags":[],"_links":{"self":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/posts\/2994"}],"collection":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/comments?post=2994"}],"version-history":[{"count":0,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/posts\/2994\/revisions"}],"wp:attachment":[{"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/media?parent=2994"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/categories?post=2994"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mudassirbackup.infinitycodestudio.com\/index.php\/wp-json\/wp\/v2\/tags?post=2994"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}