Lutetium

71
Lu

174.967




No Picture available.

Properties

Symbol Name Atomic Number Atomic Weight Group Number
Lu Lutetium 71 174.967 3

Description

Standard State: solid at 298 K
Color: Silvery White

Urbain described a process by which Marignacs ytterbium could be separated into the two elements, ytterbium and lutetium.  These elements were identical with "aldebaranium" and "cassiopeium", independently discovered by von Welsbach about the same time. Lutetium occurs in very mall amounts in nearly all minerals containing yttrium, and is present in monazite to the extent of about .003%, which is a commercial source. Virtually no other commercial uses have been found yet for Lutetium, as it is one of the most costly of the rare earth elements.