Home 67 Ho Holmium back to the periodic table

Atomic number   67
Symbol   Ho
Atomic weight   164.93032
Density [g/cm3]   8.78
Melting point [°C]   1470
Boiling point [°C]   2600
1st Ionization energy [eV]   6.02
Electronic configuration   [Xe] 4f11 6s2
Oxidation number (most stable)   3
Atomic radius [pm]   176.6
Ionic radius [pm]   91 (3+)
Abundance in crustal rocks [ppm]   ---
Origin of the name   (lat.) Holmia = Stockholm
Discovery   1878 by the Swiss Delafontaine und Soret, as well as later by the Swede Cleve
Uses   no technical significance.

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