See also:

• Science: Chemistry: Elements: Alkali Metals  (2)

ChemGlobe: Rubidium: - Electronic, thermal, and steric data along with an isotope table.

ChemicalElements.com: Rubidium: - Basic information, atomic structure, and isotopes.

EnvironmentalChemistry.com: Rubidium: - Atomic structure, chemical and physical properties, and table of nuclides.

It's Elemental: Rubidium: - Basic physical and historical information.

LANL: Rubidium: - Sources, properties, isotopes, and uses.

Lenntech: Rubidium: - Physical data, chemical properties, and health effects.

Visual Elements: Rubidium: - Image, source, uses, physical information, and key isotopes.

Wikipedia: Rubidium: - Properties of the element, including its history, applications, and characteristics.

Radiochemistry of Rubidium: - Full text of the monograph by G. W. Leddicotte (Oak Ridge National Laboratory, Oak Ridge, Tennessee). [PDF] (February, 1962)