# dubnium

> chemical element with symbol Db and atomic number 105

**Wikidata**: [Q1232](https://www.wikidata.org/wiki/Q1232)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Dubnium)  
**Source**: https://4ort.xyz/entity/dubnium


## References

1. Dubnium. ECHA Substance Infocard database
2. Atomic weights of the elements 2009 (IUPAC Technical Report)
3. [Source](https://www.cns11643.gov.tw/wordView.jsp?ID=733552)
4. Freebase Data Dumps. 2013
5. dubnium. ChemSpider
6. KBpedia