The graph below shows the radioactive decay of an isotope of strontium
Based on the graph, what is the half-life of strontium?
56.2 years
14.05 years
84.3 years
28.10 years
![The graph below shows the radioactive decay of an isotope of strontium Based on the graph what is the halflife of strontium 562 years 1405 years 843 years 2810 class=](https://us-static.z-dn.net/files/d36/cb83e500382476c6cfabe03d50cbacae.png)