SEARCH Articles Figures Tables Atomic Orbitals A Quantum Mechanical Description of Electrons Around the Nucleus Computational quantum mechanics approximate orbital theories Molecular orbital theory quantum mechanics Orbitals. Quantum Mechanics in Pictures Quantum mechanical model orbitals Quantum mechanics atomic orbital Quantum mechanics atomic orbital shapes Quantum mechanics orbital properties Quantum mechanics orbitals Quantum mechanics spin orbitals Quantum mechanics, semiempirical molecular orbital theory Quantum orbital Quantum-mechanical model atoms with orbitals The Quantum Mechanical Atom Principal Shells, Subshells, and Orbitals The Quantum-Mechanical Model Atoms with Orbitals The introduction of quantum mechanics atomic orbitals and orbital energies