Neodymium
Lanthanide · atomic number 60
Advertisement
NdNeodymium
Neodymium is a chemical element with symbol Nd and atomic number 60. It is a soft silvery metal that tarnishes in air. Neodymium was discovered in 1885 by the Austrian chemist Carl Auer von Welsbach.
Properties of Neodymium
| Element category | Lanthanide |
|---|---|
| Atomic number | 60 |
| Atomic mass | 144.2423 u |
| Phase at STP | Solid |
| Group | 3 |
| Period | 6 |
| Block | f |
| Electron configuration | [Xe] 4f4 6s2 |
| Electrons per shell | 2, 8, 18, 22, 8, 2 |
| Electronegativity (Pauling) | 1.14 |
| Melting point | 1297 K (1024 °C) |
| Boiling point | 3347 K (3074 °C) |
| Density | 7.01 g/cm3 |
| Discovered by | Carl Auer von Welsbach |
← Praseodymium · Periodic table · Promethium → Pm
About the lanthanide group
The rare-earth “inner transition” metals that give strong permanent magnets, screen phosphors and catalyst polish.
Advertisement
Advertisement