The Madelung energy ordering rule
Order in which orbitals are arranged by increasing energy according to the Madelung Rule. Each diagonal read arrow corresponds to a different value of n + l.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"Klechkovski rule."
http://en.wikipedia.org/wiki/Aufbau_principle%23mediaviewer/File:Klechkovski_rule.svg
WIkipedia
CC BY-SA 3.0.
