Orbital Posted on 11th December 201514th May 2021 by ThePD (The Project Definition) An Orbital is the path that an electron or electrons take around the nucleus of an atom and describe the wavelike behaviour of an electron. Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in Science and tagged chemistry. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.