lutetium: Quick Facts

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Oct. 9, 2026

Facts

Also Known As	Lu

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Line graph showing the first ionization energies of the elements as a function of atomic number, with peaks at noble gases like helium, neon, argon, krypton, xenon, and radon, and labeled elements at key points.

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lutetium-176 chemical element rare-earth element hydrogen carbon sodium nitrogen sulfur phosphorus boron iodine fluorine zinc

Periodic Table of the elements concept image (chemistry)

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Concept artwork on the periodic table of elements.

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