3D Structure Questions

You will also use our 3D editor regularly.  The 3D editor always starts with a methane molecule, CH4.  Hydrogens are white, while carbons are grey.  In this example, you will construct the 3D structure of butane.  Butane has 4 carbons in a chain.


  • Click and drag to the side of the methane (CH4) so you can rotate it.
  • Click on the "C" tool and then click on one of the hydrogen atoms converting it into another C atom.
    Much like our 2D editor, the 3D editor is smart and knows about valency just like the 2D editor.
  • Add two more carbon atoms to complete the butane molecule.