SEARCH Articles Figures Tables ELEMENTS OF QUANTUM MECHANICS Element Model Elements periodic table Elements periodicity Mechanical models Mechanics Model Mechanics Modeling Mechanism model Mechanisms modeling Models of Mechanisms Models quantum-mechanical model Period 2 elements Periodic table of the elements Periodic table of the elements periods Periodicity of elements Quantum mechanical model Quantum mechanical modeling Quantum mechanical modelling Quantum mechanics modelling Quantum mechanics models Quantum model Quantum modeling Table of the elements The Mechanical Model The Periodic Model The periodic table