# good quantum number

> quantum number that doesn't change for any eigenstate as time progresses

**Wikidata**: [Q5583136](https://www.wikidata.org/wiki/Q5583136)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Good_quantum_number)  
**Source**: https://4ort.xyz/entity/good-quantum-number


## References

1. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)