Rubidium

WebElements: Seaborgium WebElements: Seaborgium- Information on history, isolation, and properties. ChemicalElements: Seaborgium ChemicalElements: Seaborgium- Basic information. Wikipedia: Seaborgium Wikipedia: Seaborgium- History and basic information on the element. EnvironmentalChemistry.com: Seaborgium EnvironmentalChemistry.com: Seaborgium- Atomic structure and table of nuclides. It's Elemental: Seaborgium It's Elemental: Seaborgium- Basic physical and historical information.