# van der Waals radius

> in chemistry, a measure for the size of an atom that is not chemically (ionically or covalently) bound; half the closest distance of two equal, non-covalently bound, atoms

**Wikidata**: [Q166879](https://www.wikidata.org/wiki/Q166879)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Van_der_Waals_radius)  
**Source**: https://4ort.xyz/entity/van-der-waals-radius


## References

1. Freebase Data Dumps. 2013
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)