Our 2nd Annual Scheuermann's Disease Fundraiser on the afternoon of Sunday October 4th has now been posted to the VisitPitsburgh website. ... VisitPittsburgh is a website designed to help people plan their next visit to Pittsburgh, PA.
An antibonding orbital is a molecular orbital containing an electron outside the region between the two nuclei. As two atoms approach each other, their electron orbitals begin to overlap. This overlap forms a molecular bond between the two atoms with its own molecular orbital shape.
This molecular orbital model can be used to explain why He 2 molecules don't exist. Combining a pair of helium atoms with 1 s 2 electron configurations would produce a molecule with a pair of electrons in both the bonding and the * antibonding molecular orbitals.