Orbital energy-level diagram for every element up to krypton. Step from one element to the next to watch electrons fill shells, sub-shells and orbitals by the Aufbau principle and Hund's rule, and add or remove electrons to form ions.
Orbital energy-level diagram for every element up to krypton. Step from one element to the next to watch electrons fill shells, sub-shells and orbitals by the Aufbau principle and Hund's rule, and add or remove electrons to form ions.