# isotope of promethium
**Wikidata**: [Q550394](https://www.wikidata.org/wiki/Q550394)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Isotopes_of_promethium)  
**Source**: https://4ort.xyz/entity/isotope-of-promethium


## References

1. Freebase Data Dumps. 2013
2. KBpedia