# onium ion

> any cation formally derived by protonation of a parent hydride of a p-block element

**Wikidata**: [Q341409](https://www.wikidata.org/wiki/Q341409)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Onium_ion)  
**Source**: https://4ort.xyz/entity/onium-ion


## References

1. Glossary of Class Names of Organic Compounds and Reactive Intermediates Based on Structure (IUPAC Recommendations 1995)
2. Freebase Data Dumps. 2013
3. UMLS 2023