URANIUM

It is a chemical element which chemical symbol is Or and his atomic number is 92. His name comes from the planet Uranus. It was discovered in 1789 by M. H. Klaproth that it called this way in honor of the planet Uranus that had just been an overdraft in 1781. It decides to put the name of the above mentioned planet to the mineral, because of it the metal that is obtained of him, he will be known like "uranium" (that comes from the Latin) that will give the Spanish uranium, beginning here the astronomic nomenclature of the chemical elements.
His previous symbol was Ur.

Information obtained of www.wikipedia.org and www.webelements.com