# niobium

> chemical element with symbol Nb and atomic number 41

**Wikidata**: [Q1046](https://www.wikidata.org/wiki/Q1046)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Niobium)  
**Source**: https://4ort.xyz/entity/niobium


## References

1. niobium. Global Substance Registration System
2. [CAS Common Chemistry](https://commonchemistry.cas.org/detail?cas_rn=7440-03-1)
3. NIOBIUM. PubChem
4. ChEBI release 2020-09-01
5. Atomic weights of the elements 2009 (IUPAC Technical Report)
6. periodic table
7. [Source](https://www.cns11643.gov.tw/wordView.jsp?ID=149565)
8. Freebase Data Dumps. 2013
9. Niobium. ChemSpider
10. Integrated Authority File
11. [Source](https://www.britannica.com/science/niobium)
12. Standard Atomic Weights of 14 Chemical Elements Revised. Chemistry International
13. YSO-Wikidata mapping project
14. Niobium. ECHA Substance Infocard database
15. BabelNet
16. UMLS 2023
17. Mapping file of InChIStrings, InChIKeys and DTXSIDs for the EPA CompTox Dashboard
18. [Source](https://golden.com/wiki/Niobium-KKGJ)
19. CABI Thesaurus
20. National Library of Israel
21. KBpedia
22. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)
23. UniChem