The Pauli exclusion principle states that no electrons can have the same four quantum numbers. Examples and explanations of the concept provided| ChemTalk
Learn the definition of the Aufbau Principle, how to apply the Aufbau rule for electrons, and where exceptions occur in the periodic table.| ChemTalk
How to write electron configurations & orbital diagrams for elements, with Hund's rule, Aufbau's principle & the Pauli Exclusion Principle| ChemTalk