(a) Radioactive decay processes on the nuclide chart. A “parent” with coordinates Z, N transforms to the “daughter” product through the decay process shown. (b) Activation processes and nuclear reactions on the nuclide chart. A target nuclide with coordinates Z, N transforms to the nuclide Z', N' through the processes shown. The reaction can be written ^Z+NX(a,b)^Z'+N'Y where a and b are the incident and exiting particles respectively.