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Science: Chemistry: Elements: Promethium

See also:

ChemGlobe: Promethium
Electronic, thermal, and steric data along with an isotope table. Promethium
Basic information, atomic structure, and isotopes. Promethium
Atomic structure, chemical and physical properties, and table of nuclides.

It's Elemental: Promethium
Basic physical and historical information.

LANL: Promethium
History, sources, uses, and properties.

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

Data table and historic information.

Visual Elements: Promethium
Image, animation, source, uses, and ionisation energies.

WebElements: Promethium
Extensive information on history, uses, occurrence, compounds, and properties.

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


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