LUTECIO

The lutecio is a chemical element of atomic number 71 which chemical symbol is Lu. His name comes from the former name of the city of Paris, in Latin, Lutetia.

The lutecio is a trivalent metal of white color silvering resistant to the corrosion and relatively stablly in air presence. It is the heaviest and hard element of all the rare lands.

The lutecio, was discovered of independent form in 1907 by the French scientist Georges Urbain and the mineralogist Carol Auer von Welsbach.

The metal is a silver and relatively stable white in the air. The pure metal lutecio has been isolated only in the recent years and is one of the most difficult to prepare.

Information extracted of www.wikipedia.org