Radioactive dating of rock samples


Half lives can vary from seconds (. radon-224 half life = 55 seconds) to millions of years (. potassium-40 half life = x 10 9 years). This has implications for radioactive waste from nuclear power stations which will need to be stored safely for a very long time.

The different isotopes of carbon do not differ appreciably in their chemical properties. This resemblance is used in chemical and biological research, in a technique called carbon labeling : carbon-14 atoms can be used to replace nonradioactive carbon, in order to trace chemical and biochemical reactions involving carbon atoms from any given organic compound.


Radioactive dating of rock samples

Radioactive dating of rock samples