# vacancy

> type of point defect in a crystal, in which an atom is missing from one of the lattice sites

**Wikidata**: [Q899743](https://www.wikidata.org/wiki/Q899743)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Vacancy_defect)  
**Source**: https://4ort.xyz/entity/vacancy-q899743


## References

1. Freebase Data Dumps. 2013
2. [Indication of site occupancy. IUPAC nomenclature of inorganic chemistry 2005. 2005](https://old.iupac.org/publications/books/rbook/Red_Book_2005.pdf)
3. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)