lutetium, lutecium

(loo-tē′sh(ē-)ŭm )

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[ Lutetia (Parisiorum), Roman name of Paris + -ium (1)]
SYMB: Lu A rare element, atomic weight (mass) 174.97, atomic number 71. It is used in clinical medicine as a photosensitizing agent.
CAS# 7439-94-3

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