# barium-137

> isotope of barium

**Wikidata**: [Q4734760](https://www.wikidata.org/wiki/Q4734760)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Barium-137)  
**Source**: https://4ort.xyz/entity/barium-137


## References

1. [NuDat](http://www.nndc.bnl.gov/nudat2/reCenter.jsp?n=81&z=56)
2. [The AME2016 atomic mass evaluation (I). Evaluation of input data; and adjustment procedures](http://amdc.in2p3.fr/masstables/Ame2016/mass16.txt)
3. [NuDat](http://www.nndc.bnl.gov/nudat2/reCenter.jsp?z=56&n=81)
4. UniChem