# helium-2

> extremely unstable isotope of helium that consists of two protons with no neutrons

**Wikidata**: [Q1043968](https://www.wikidata.org/wiki/Q1043968)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Helium-2)  
**Source**: https://4ort.xyz/entity/helium-2


## References

1. Freebase Data Dumps. 2013