Neodymium (Nd)

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.

Atomic Number

60

Atomic Mass

144.24 u

Category

lanthanide

Phase

solid

Density

7.01 g/cm³

Electron Shells

2, 8, 18, 22, 8, 2

Atomic Structure

Protons: 60 • Electrons: 60 • Neutrons: Varies by isotope

Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f⁴

Discovery

1885 • Carl Auer von Welsbach