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Periodic table
Period 6Lanthanides
60Solid
Nd 144.242 Atomic mass · u
Lanthanides

Neodymium

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.

Discovery 1885 (Carl Auer von Welsbach)
Neodymium electron shellsNd60 protons
K2L8M18N22O8P2
A simplified shell model. Electron positions are illustrative.

Physical properties

Values for the element in its standard state.

Density
7.01g/cm³
Melting point
1,294K
Boiling point
3,373K
Atomic radius
Not available
Bonding type
Metallic
Molar heat
27.45J/(mol·K)

Inside the atom

Electron arrangement and the energy behind its behavior.

Full electron configuration

1s, 2 electrons; 2s, 2 electrons; 2p, 6 electrons; 3s, 2 electrons; 3p, 6 electrons; 3d, 10 electrons; 4s, 2 electrons; 4p, 6 electrons; 4d, 10 electrons; 5s, 2 electrons; 5p, 6 electrons; 4f, 4 electrons; 6s, 2 electrons;

[Xe] represents 54 core electrons. The full view shows them explicitly.

60 electrons Orbital order preserved from source

Electronegativity
1.14Pauling scale
First ionization energy
533kJ/mol
Electron affinity
50kJ/mol
Van der Waals radius
Not available

About neodymium

Appearance
Silvery white
Discovery
1885 (Carl Auer von Welsbach)

A missing value means it is unavailable in this reference dataset. Values can vary with measurement method and conditions.