# lanthanum

> chemical element with symbol La and atomic number 57

**Wikidata**: [Q1801](https://www.wikidata.org/wiki/Q1801)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Lanthanum)  
**Source**: https://4ort.xyz/entity/lanthanum


## References

1. Nature's Building Blocks An A-Z Guide of the Elements New Edition
2. lanthanum. Global Substance Registration System
3. [CAS Common Chemistry](https://commonchemistry.cas.org/detail?cas_rn=7439-91-0)
4. Lanthanum. ECHA Substance Infocard database
5. LANTHANUM. PubChem
6. ChEBI release 2020-09-01
7. Atomic weights of the elements 2009 (IUPAC Technical Report)
8. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=26399)
9. [Source](https://www.cns11643.gov.tw/wordView.jsp?ID=160066)
10. Nuovo soggettario
11. Freebase Data Dumps. 2013
12. Lanthanum. ChemSpider
13. ChEBI release 2019-10-02
14. Integrated Authority File
15. periodic table
16. Atomic weights of the elements 2013 (IUPAC Technical Report)
17. [Source](http://echa.europa.eu/de/information-on-chemicals/registered-substances)
18. BabelNet
19. Mapping file of InChIStrings, InChIKeys and DTXSIDs for the EPA CompTox Dashboard
20. CABI Thesaurus
21. National Library of Israel
22. KBpedia
23. GF WordNet
24. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)
25. UniChem