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1. WebElements: Promethium

Extensive information on history, uses, occurrence, compounds, and properties.
http://www.webelements.com/webelements/elements/text/Pm/key.html - 14-05-2001 - [detailed information]
Rating: [7.00] Votes: [1855]

2. ChemicalElements.com: Promethium

Basic information, atomic structure, and isotopes.
http://www.chemicalelements.com/elements/pm.html - 07-05-2002 - [detailed information]
Rating: [6.00] Votes: [339]

3. LANL: Promethium

History, sources, uses, and properties.
http://pearl1.lanl.gov/periodic/elements/61.html - 23-07-2003 - [detailed information]
Rating: [6.00] Votes: [2323]

4. ChemGlobe: Promethium

Electronic, thermal, and steric data along with an isotope table.
http://www.vcs.ethz.ch/chemglobe/ptoe/_/61.html - 25-05-2000 - [detailed information]
Rating: [5.00] Votes: [1928]

5. EnvironmentalChemistry.com: Promethium

Atomic structure, chemical and physical properties, and table of nuclides.
http://environmentalchemistry.com/yogi/periodic/Pm.html - 14-04-2001 - [detailed information]
Rating: [5.00] Votes: [1382]

6. Visual Elements: Promethium

Image, animation, source, uses, and ionisation energies.
http://www.chemsoc.org/viselements/pages/promethium.html - 11-08-2003 - [detailed information]
Rating: [5.00] Votes: [2127]

7. Promethium

Data table and historic information.
http://www.scescape.net/~woods/elements/promethium.html - 12-10-2002 - [detailed information]
Rating: [4.00] Votes: [2384]

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