Drawing simple molecules

Carbon (C) and hydrogen (H) aren't the only elements in organic chemistry.  You will need to draw more complex structures requiring other elements.  In this example you will draw dimethyl ether.

Dimethy ether

Action

Draw propane like you did in the previous example.  Then click on the Atom tool ( ) and then click on the central Carbon (C) atom.  Click the drop-down box and select "O" or type an upper case "O" to change the atom to oxygen (O).