On this page I'll provide comprehensive data for Praseodymium. I hope you profit from it.
Praseodymium Overview
Name Origin
Greek: prasios and didymos (green twin); from its green salts.
Symbol
Pr (Praseodymium)Description
Silvery white, moderately soft, malleable, ductile metal.
Discovery
Discovered By: C.F. Aver von Welsbach
Year: 1885
Location: Austria
Sources
Obtained from same salts as neodymium.
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.
State at 20 °C
Solid
Group
Group Name: Rare EarthÂ
Group in periodic table: 0
Period in periodic table:Â 6
Atomic Number
59Learn more about the atomic number.
Atomic Mass
140,90765
Learn more about the atomic mass.
Stable Isotopes
Pr141 percent abundance: 100%
Learn more about stable isotopes.
Radioactive Isotopes
Pr137-140, Pr142-145
Learn more about radioactive isotopes.
Atomic Structure
Crystalline Structure
Hexagonal
Learn more about crystalline structure
Shells
Electrons per energy level: 2,8,18,21,8,2
Learn more about electron shells
Electron Configuration
1s2 2s2 2p6 3s2 3p6 4 s2 3 d10 4 p6 5 s2 4 d10 5 p6 6 s2 4 f3
Learn more about electron configuration.
Abbreviated Configuration
[Xe] 4f3 6s2
Learn more about abbreviated electron configuration.
Valence Electrons
3
Learn more about valence electrons
Atom Size
Atomic Radius
2.67 Ã…
Learn more about atomic radius.
Covalent Radius
1.65 Ã…
Learn more about covalent radius.
Ionic Radius
1.13 (+3) Ã…
Learn more about ionic radius.
Molar Volume
20.8 cm³/mol
Learn more about molar volume.
Chemical Properties
Common Oxidation States
First Ionization Energy
First Ionization Potential
Second Ionization Potential
Third Ionization Potential
Physical Properties
Density
Electrical Conductivity
Thermal Conductivity
Elastic Modulus
Coefficient of Thermal Expansion
Learn more about coefficient of thermal expansion.
Heat Properties
Other heat related physical properties:
Melting Point
Boiling Point
Specific Heat
0.19 J/gK
Learn more about specific heat.
Learn more about specific heat.
Heat of Fusion
6.890 kJ/mol
Learn more about heat of fusion.
Heat of Vaporization
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