2. Select an orbital for viewing. Click on a line in the scheme.
 
You selected orbital number
Question: Of what type is this orbital?
sigma (bonding)
sigma* (anti-bonding)
pi (bonding)
pi* (anti-bonding)
non-bonding
You can do the bookkeeping of the number of electrons in bonding and in antibonding orbitals in the boxes under the scheme, in order to determine the bond order (question 2 below). Enter the MO number for each electron in a bonding or antibonding orbital, in this example 11 in the 'bonding' field.
 
bonding:   antibonding:
  3. Answer the questions 
  1. What is the number of the highest occupied orbital (HOMO)?
1   2      
  2. What is the bond order in the molecule?
1    2    
Enter MO number of
each 'bonding' electron
Enter MO number of
each 'antibonding' electron
Select one of the
options below by
clicking the circle