« back

59 - Praseodymium lanthanide

Discovered by Carl Auer von Welsbach in 1885

Praseodymium

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.
Shell Electrons Orbitals
1 2 2 in 1s
2 8 2 in 2s + 6 in 2p
3 18 2 in 3s + 6 in 3p + 10 in 3d
4 21 2 in 4s + 6 in 4p + 10 in 4d + 3 in 4f
5 8 2 in 5s + 6 in 5p
6 2 2 in 6s
PraseodymiumPr 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
140.91  u Atomic Mass
2.7  Å Atomic Radius
3793  K Boiling Point
2.03  Å Covalent Radius
6.77  g/cm³ Density
93 Electron Affinity
1.13 Electronegativity
5.47  eV First Ionization Energy
1204.15  K Melting Point
6 Number of Shells
59 Atomic Number
2, 8, 18, 21, 8, 2 Electron Shell Occupations