radioactivity for

This observation led to the use of induced radioactivity for the identification of elements.

The elements most important for induced radioactivity for sea water are sodium-24, chlorine, magnesium, and bromine.

Fission products are the largest amount of radioactivity for the first several hundred years, while actinides are dominant roughly 10 < sup > 3 </ sup > to 10 < sup > 5 </ sup > years after fuel use.