Transuranium Elements  (1963)
Channel: Deep13th Nuclear Waste Info
Date: 23/01/2014

The transuranium elements (also known as transuranic elements) are the chemical elements with atomic numbers greater than 92 (the atomic number of uranium). All of these elements are unstable and decay radioactively into other elements.

Of the elements with atomic numbers 1 to 92, all can be found in nature, having stable (such as hydrogen), or very long half-life (such as uranium) isotopes, or are created as common products of the decay of uranium and thorium (such as radon).

http://en.wikipedia.org/wiki/Transuranium_element