Praseodymium
From Conservapedia
Praseodymium | |
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Properties | |
Atomic symbol | Pr |
Atomic number | 59 |
Classification | Metallic |
Atomic mass | 140.90765 amu |
Other Information | |
Date of discovery | 1885 |
Name of discoverer | Baron Carl Auer von Welsbach |
Name origin | From the Greek prasios, meaning green, and didymos, meaning twin. |
Uses | Used as an alloying agent with magnesium to create high-strength metals for use in aircraft engines; Cores of carbon arc lights, used in the film industry for studio lighting and projector lights; Praseodymium compounds colour glasses and enamels yellow. |
Obtained from | Obtained from monazite and bastnasite ores. |
Praseodymium is a metallic element in the Lanthanoid group. It is soft, silvery, malleable, and ductile.[1] It is one of the rare earth elements.
References
Periodic Table of the Elements | ||||||||||||||||||||||||
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1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | |||||||
*Lanthanides | 59
Pr 140.91 |
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**Actinides | ||||||||||||||||||||||||