A maximum of two electrons should be found in this orbital, and these guys should have positive one half and negative one half. So opposite spins. And that's exactly what we have here. So these electrons will not want to go into this orbital because this is higher in energy, and it causes the bond to destabilize or break apart. So, once again, this was combining two atomic one s orbitals to form two molecular orbitals. Now, let's combine one S orbital and a two p orbital.