# OddoHarkins rule

> Relative abundance of chemical elements

**Wikidata**: [Q732994](https://www.wikidata.org/wiki/Q732994)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Oddo–Harkins_rule)  
**Source**: https://4ort.xyz/entity/oddoharkins-rule


## References

1. Freebase Data Dumps. 2013