State", and was concluded by two reports and by the revised entries "Oxidation State" and "Oxidation Number" in the IUPAC Gold Book. The outcomes were a single definition of oxidation state and two algorithms to calculate it in molecular and extended-solid compounds, guided by Allen electronegativities that are independent of oxidation state. See also Electronegativity Electrochemistry Atomic orbital Atomic shell Quantum numbers Azimuthal quantum number Principal quantum number Magnetic quantum number Spin quantum number Aufbau principle Wiswesser's rule Ionization energy Electron affinity Ionic potential Ions Cations and Anions Polyatomic ions Covalent bonding Metallic bonding Hybridization References Chemical nomenclature Chemical properties Coordination chemistry Dimensionless numbers of chemistry Redox