Adding and Deleting Valences


The Add Valence button attaches additional valences (shown as hydrogen atoms) to the center clicked with the mouse. The new valences will be placed as far as possible from the other atoms attached to the center.


Similarly, the Delete Atom button removes atoms and open valences. When used, the function will eliminate the selected atom and all single valences (hydrogens) attached to it. It may also be used to remove a dangling bond by clicking on the bond stick.

bld_dangle.tif
Deleting a Dangling Bond (Open Valence)
Clicking on it will remove the open valence.