Start Lead uranium dating

Lead uranium dating

Uranium, with the chemical symbol U and an atomic number of 92, is a silvery-white metallic element with the second highest atomic weight of all naturally occurring elements.

This require uranium to be enriched with the uranium-235 isotope and the chain reaction to be controlled so that the energy is released in a more manageable way.

In short, Genesis was an allegory and not literal history.

The story of this great change in the conception of the history of Earth is not a simple one.

It wasn't until well into the 20th century that enough information had accumulated about the rate of radioactive decay that the age of rocks and fossils in number of years could be determined through radiometric age dating.