Hafnium — lutetium ← hafnium → tantalum Zr ↑ Hf ↓ Rf … Wikipedia
Lanthanide — 1 2 3 4 5 6 7 8 9 … Wikipédia en Français
Lanthanides — Lanthanide 1 2 3 4 5 6 7 8 9 … Wikipédia en Français
Lutetium — (pronEng|ljuːˈtiːʃiəm) is a chemical element with the symbol Lu and atomic number 71. A silvery white rare metal, lutetium is the heaviest member of the rare earth group.Parker, Sybil P., ed. Dictionary of Scientific and Technical Terms. 3rd ed.… … Wikipedia
lutetium — /looh tee shee euhm/, n. Chem. a trivalent rare earth element. Symbol: Lu; at. wt.: 174.97; at. no.: 71. Also, lutecium. [1905 10; < L Lutet(ia) Paris + IUM] * * * ▪ chemical element (Lu), chemical element, rare earth metal of the lanthanoid… … Universalium