59 - Praseodymium lanthanide Praseodymium Pr Electron 1 Electron 2 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 11 Electron 12 Electron 13 Electron 14 Electron 15 Electron 16 Electron 17 Electron 18 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 11 Electron 12 Electron 13 Electron 14 Electron 15 Electron 16 Electron 17 Electron 18 Electron 19 Electron 20 Electron 21 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 1 Electron 2
Praseodymium is a chemical element with symbol Pr and atomic number 59. Praseodymium is a soft, silvery, malleable and ductile metal in the lanthanide group. It is valued for its magnetic, electrical, chemical, and optical properties.
59 Atomic Number
140.91 u Atomic Mass
1204.15 K Melting Point
3793 K Boiling Point
6.77 g/cm³ Density
2.7 Å Atomic Radius
2.03 Å Covalent Radius
1.13 Electronegativity
5.47 eV First Ionization Energy
93 Electron Affinity
6 Number of Shells
2, 8, 18, 21, 8, 2 Electron Shell Occupations
0.19 J/g Specific Heat
