Označeno: kemijske formule

Viri slik: https://en.wikipedia.org/wiki/Cycloalkane https://sl.wikipedia.org/wiki/Propan https://commons.wikimedia.org/wiki/File:Cyclohexane_molecule_chair_ball.png http://www.chem.ucla.edu/~harding/IGOC/C/cyclohexane.html https://enacademic.com/dic.nsf/enwiki/65008 http://ugljikovodici.blogspot.com/p/alkini.html https://commons.wikimedia.org/wiki/File:Propin_2D.svg https://www.wikiwand.com/sl/Alken https://www.pinclipart.com/pindetail/oRboow_http-upload-wikimedia-3d-balls-ethylene-png-clipart/ https://commons.wikimedia.org/wiki/File:Cyclobutene_molecule_ball.png https://commons.wikimedia.org/wiki/File:Cyclopropene-3D-balls.png https://www.wikiwand.com/en/Cyclopropene