Beta Decay
Therefore,
![](https://afcf.umaryland.edu/ehs/public/uploads/UMB RadiationSafety/slide18.jpg)
Same for all other Beta emitting Isotopes
![](https://afcf.umaryland.edu/ehs/public/uploads/UMB RadiationSafety/slide18.jpg)
Same for all other Beta emitting Isotopes