Home 11 Na Sodium back to the periodic table

Atomic number   11
Symbol   Na
Atomic weight   22.989768
Density [g/cm3]   0.97
Melting point [°C]   98.8
Boiling point [°C]   885
1st Ionization energy [eV]   5.139
Electronic configuration   [Ne] 3s
Oxidation number (most stable)   1
Atomic radius [pm]   153.7
Ionic radius [pm]   102 (1+)
Abundance in crustal rocks [ppm]   22700
Origin of the name   form the English word soda; (the origin of the symbol Na (arab.) natrum = Soda)
Discovery   1807 by the English scientist Humphry Davy
Uses   Metallic sodium for sodium-vapor lamps as well as cooling agents in the reactor engineering, sodium carbonate for the production of glass. 

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© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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