Ogljikovodiki, Černelč

Viri: https://eucbeniki.sio.si/kemija1/492/index.html , https://en.wiktionary.org/wiki/metan#/media/File:Methan_Lewis.svg, https://pms.wikipedia.org/wiki/Etan#/media/Figura:Ethane-3D-balls.png, https://hr.wikipedia.org/wiki/Etan#/media/Datoteka:Ethane-flat.png, https://sl.wikipedia.org/wiki/Propan#/media/Slika:Propane-3D-balls-B.png, https://sl.wikipedia.org/wiki/Propan#/media/Slika:Propane-2D-flat.png, https://pl.wiktionary.org/wiki/eten#/media/Plik:Ethylene-CRC-MW-3D-balls.png, https://sl.wikipedia.org/wiki/Alken#/media/Slika:Ethene_structural.svg, http://depts.washington.edu/centc/research-themes.php, https://www.wikidata.org/wiki/Q151324#/media/File:Propene-2D-flat.png, http://ugljikovodici.blogspot.com/p/alkini.htmlhttps://upload.wikimedia.org/wikipedia/commons/a/a7/Propin_2D.svg,