Lutetium (Lu)
Lutetium (Lu)
First described in 1907, lutetium occurs in nearly all minerals that also contain yttrium, including monazite. The original name of the element, lutecium, was changed to lutetium in 1949.
This pure metal is difficult to isolate. It's silvery-white and relatively stable in air. Stable lutetium nuclides emit pure beta radiation (after activation) and can be used as catalysts in cracking, alkylation, hydrogenation, and polymerization reactions.
No other commercial uses for lutetium are known.
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