Chemical Elements History and Information Uranium

About the chemical element Uranium, its symbol, atomic number and weight, who discovered it and when.

The Atomic Elements and Their Uses

(Element) (Symbol) (Atomic number) (Atomic weight)

Uranium U 92 238.029

Discovered by Martin Klaproth of Germany in 1789. The heaviest of the naturally occurring elements, uranium was the first radioactive material used for atomic reactions. The isotope U235 is still the most important nuclear fuel; 1 lb. of U235 releases the energy equivalent of 3 million lb. of coal.