# isotope of calcium

> isotope with 20 protons per atom

**Wikidata**: [Q382952](https://www.wikidata.org/wiki/Q382952)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Isotopes_of_calcium)  
**Source**: https://4ort.xyz/entity/isotope-of-calcium


## References

1. BabelNet
2. UMLS 2023
3. KBpedia
4. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)