Radioactive Dating Some Examples. Note increasing atomic number doesn't necessarily make an atom more unstable. Natural radiation sources such as radiation from cosmic rays, radiation from chemical elements found in the earth’s crust, radiation that occurs in the atmosphere due to the shifting trajectory of.
The method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant. A couple of wonderful examples have been in the news in the past years. The age of the speciments can be calculated by comparing the present level of carbon 14 per kilogram with that of the living organism.
My interests include staying up of radioactive isotopes.
This method is known as radiometric dating. One scroll, the book of isaiah, has been dated at 1917bc ±275 years, certainly long before the time of christ. Many people assume that the dates scientists quote of millions of years are as reliable as our knowledge of the structure of the atom or nuclear power. A good example is the dating of coral.