Unsur periode 2: Perbedaan antara revisi

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Tag: Suntingan perangkat seluler Suntingan aplikasi seluler
Tag: Suntingan perangkat seluler Suntingan aplikasi seluler
Baris 188:
Banyak senyawa industri penting, seperti [[amonia]], [[asam nitrat]], nitrat organik ([[propelan]] dan [[bahan peledak]]), dan [[sianida]], mengandung nitrogen. Ikatan yang sangat kuat dalam nitrogen elementer mendominasi kimia nitrogen, menyebabkan organisme maupun industri kesulitan dalam memecah ikatan untuk mengubah molekul {{chem2|N|2}} menjadi [[Senyawa kimia|senyawa]] yang berguna, tetapi pada saat yang bersamaan menyebabkan pelepasan energi yang besar yang kadang-kadang berguna ketika senyawa terbakar, meledak, atau meluruh kembali menjadi gas nitrogen.
 
Nitrogen terdapat dalam semua organisme hidup, dan [[siklus nitrogen]] menjelaskan pergerakan unsur dari udara ke dalam [[biosfer]] dan senyawa organik, kemudian kembali ke atmosfer. [[Nitrat]] sintetis adalah ingredien utama industri [[pupuk]], dan juga polutan utama penyebab [[eutrofikasi]] sistem perairan.
<!--Nitrogen occurs in all living organisms, and the [[nitrogen cycle]] describes movement of the element from air into the [[biosphere]] and organic compounds, then back into the atmosphere. Synthetically produced [[nitrate]]s are key ingredients of industrial [[fertilizer]]s, and also key pollutants in causing the [[eutrophication]] of water systems. Nitrogen is a constituent element of [[amino acid]]s and thus of [[protein]]s, and of [[nucleic acid]]s ([[DNA]] and [[RNA]]). It resides in the [[chemical structure]] of almost all [[neurotransmitter]]s, and is a defining component of [[alkaloid]]s, biological molecules produced by many organisms.<ref name="Lightning">{{Cite book |title = Lightning: Physics and Effects |first = Vladimir A. |last = Rakov |author2=Uman, Martin A. |publisher = Cambridge University Press |year = 2007 |isbn = 978-0-521-03541-5 |page = 508 |url=http://books.google.com/?id=TuMa5lAa3RAC&pg=PA508}}</ref> -->
 
<!--Nitrogen occurs in all living organisms, and the [[nitrogen cycle]] describes movement of the element from air into the [[biosphere]] and organic compounds, then back into the atmosphere. Synthetically produced [[nitrate]]s are key ingredients of industrial [[fertilizer]]s, and also key pollutants in causing the [[eutrophication]] of water systems. Nitrogen is a constituent element of [[amino acid]]s and thus of [[protein]]s, and of [[nucleic acid]]s ([[DNA]] and [[RNA]]). It resides in the [[chemical structure]] of almost all [[neurotransmitter]]s, and is a defining component of [[alkaloid]]s, biological molecules produced by many organisms.<ref name="Lightning">{{Cite book |title = Lightning: Physics and Effects |first = Vladimir A. |last = Rakov |author2=Uman, Martin A. |publisher = Cambridge University Press |year = 2007 |isbn = 978-0-521-03541-5 |page = 508 |url=http://books.google.com/?id=TuMa5lAa3RAC&pg=PA508}}</ref> -->
 
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