# radium

> chemical element with symbol Ra and atomic number 88

**Wikidata**: [Q1128](https://www.wikidata.org/wiki/Q1128)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Radium)  
**Source**: https://4ort.xyz/entity/radium


## References

1. radium. Global Substance Registration System
2. [CAS Common Chemistry](https://commonchemistry.cas.org/detail?cas_rn=7440-14-4)
3. RADIUM. PubChem
4. ChEBI release 2020-09-01
5. Atomic weights of the elements 2009 (IUPAC Technical Report)
6. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=18888)
7. [Source](https://www.cns11643.gov.tw/wordView.jsp?ID=97078)
8. [Source](http://www.rsc.org/periodic-table/element/88/radium)
9. Freebase Data Dumps. 2013
10. Radium. ChemSpider
11. radium atom. ChEBI
12. [Registros de autoridad de "Materia" de la Biblioteca Nacional de España. Spain open data portal](https://www.bne.es/media/datosgob/catalogo-autoridades/materia/materia-UTF8.zip)
13. Integrated Authority File
14. YSO-Wikidata mapping project
15. Radium. ECHA Substance Infocard database
16. UMLS 2023
17. Mapping file of InChIStrings, InChIKeys and DTXSIDs for the EPA CompTox Dashboard
18. [Source](https://golden.com/wiki/Radium-ZX5K8)
19. CABI Thesaurus
20. National Library of Israel
21. KBpedia
22. GF WordNet
23. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)
24. UniChem