Uses: Used with neodymium to make lenses for glass maker's goggles since it filters out the yellow light present in glass blowing. Alloyed with magnesium creates a high-strength metal used in aircraft engines. Makes up 5% of Mich metal
Atomic number: 59
Atomic weight: 140.90765
Density (at room temperature and pressure): 6.77 g/cc
Melting point: 931°C
Boiling point: 3,520°C
Main valence: +3
Ground state electron configuration: [Xe]4f36s2
Pra`se*o*dym"i*um (?), n. [Praseo- + didymium.] Chem.
An elementary substance, one of the constituents of didymium; -- so called from the green color of its salts. Symbol Ps. Atomic weight 143.6.
© Webster 1913.
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