One of the simplest ways to calculate them is as a linear combination of their atomic counterparts.
These entities are modeled by the STO-nG and the Pople sets, and by more complicated functions denoted with zeta notation. One model for describing them sets Coulomb integral equal to alpha and the resonance integral equal to beta and was developed by Erich Hückel. A good rule of thumb is that diagrams of them for cyclic conjugated pi system always takes the shape of the ring involved, with one vertex pointing down. They are created in pairs, with the higher-energy one being marked with a star. The chemical reactivity of species often depends on the highest occupied and lowest unoccupied, or "frontier," examples of the these entities, which can be described as bonding or antibonding. One of the simplest ways to calculate them is as a linear combination of their atomic counterparts. For 10 points, name these functions that describe the locations of electrons in a molecule.
These entities are modeled by the STO-nG and the Pople sets, and by more complicated functions denoted with zeta notation.
molecular orbitals [prompt on orbital; accept atomic orbitals before \"alpha\" and DO NOT accept or prompt afterwards]