See also:

• Science: Chemistry: Elements: Platinum Metals  (1)
• Science: Chemistry: Elements: Transition Metals  (3)

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

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

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

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

LANL: Platinum: - Sources, properties, and uses.

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

Visual Elements: Platinum: - Image, general and physical information, source, uses, key isotopes, and ionisation energies.

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

Radiochemistry of Platinum: - Full text of the monograph by G. W. Leddicotte (Oak Ridge National Laboratory, Oak Ridge, Tennessee). [PDF] (October, 1961)