Lanthanides

Wikipedia: Lutetium Wikipedia: Lutetium- Properties of the element, including its history, applications, and characteristics. Lenntech: Lutetium Lenntech: Lutetium- Physical data, chemical properties, health and environmental effects. EnvironmentalChemistry.com: Lutetium EnvironmentalChemistry.com: Lutetium- Atomic structure, chemical and physical properties, and table of nuclides. It's Elemental: Lutetium It's Elemental: Lutetium- Basic physical and historical information. ChemicalElements.com: Lutetium ChemicalElements.com: Lutetium- Basic information, atomic structure, and table of isotopes.