They need to be active long enough to treat the condition, but they should also have a short enough half-life so that they don’t injure healthy cells and organs.
To me it has been a real eye opener to see all the processes that are taking place and their potential influence on radiometric dating.
Radiometric dating is largely done on rock that has formed from solidified lava.
Lava (properly called magma before it erupts) fills large underground chambers called magma chambers.
Most people are not aware of the many processes that take place in lava before it erupts and as it solidifies, processes that can have a tremendous influence on daughter to parent ratios.
As long as an organism is alive, the amount of C-14 in its cellular structure remains constant.
But when the organism dies, the amount of C-14 begins to decrease.Plants absorb C-14 during photosynthesis, so C-14 is incorporated into the cellular structure of plants.Plants are then eaten by animals, making C-14 a part of the cellular structure of all living things.Radiocarbon dating is one kind of radiometric dating, used for determining the age of organic remains that are less than 50,000 years old.For inorganic matter and for older materials, isotopes of other elements, such as potassium, uranium, and strontium, are used.This decay is an example of an exponential decay, shown in the figure below.