A Troika of Quantum Sciku by Jeffery Shevlen

Pauli Exclusion Principle

No suborbitals
Take electron pairs whose spins
consent to agree

Aufbau Principle

Electrons always fill
The lowest energy
Sub-orbitals first

Hund’s Rule

Before forming pairs
Electrons first fill each sub-
Orbital alone

These poems are broadly about the properties of atoms. More specifically they describe three simple rules that came from of the flowering of quantum discovery roughly 100 years ago. Each describes how electrons can populate the zones around an atom’s nucleus which are called orbitals. To me haikus, scikus, wonderfully compliment the subtle interactions of the subatomic realm. Egoless nature, all the way down.

Wikipedia devotes three pages to each of the three axioms. For a more detailed explanation wikipedia is a fine place to start:

https://en.wikipedia.org/wiki/Pauli_exclusion_principle
https://en.wikipedia.org/wiki/Aufbau_principle
https://en.wikipedia.org/wiki/Hund%27s_rule_of_maximum_multiplicity

Jeffrey Shevlen is a stay at home dad and therefore a lifelong, if somewhat bruised, learner. He sends greetings from Ontario, Canada, formerly “Your’s to Discover”, now “A Place to Grow”.

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