Neodymium
Symbol
Nd
Atomic Number
60
Atomic Weight
144.24
Element Classification
Discovered By
C.F. Aver von Welsbach
Discovery Date
1925 (Austria)
Name Origin
Greek: neos and didymos (new twin).
Density (g/cc)
7.007
Melting Point (K)
1294
Boiling Point (K)
3341
Appearance
Silvery-white, rare-earth metal that oxidizes easily in air
Atomic Radius (pm)
182
Atomic Volume (cc/mol)
20.6
Covalent Radius (pm)
184
Ionic Radius
99.5 (+3e)
Specific Heat
0.205
Fusion Heat (kJ/mol)
7.1
Evaporation Heat (kJ/mol)
289
Thermal Conductivity (@25°C W/m K)
(16.5)
Debye Temperature (K)
n/a
Pauling Negativity Number
1.14
First Ionizing Energy (kJ/mol)
531.5
Oxidation States
3
Electronic Configuration
[Xe] 4f4 6s2
Lattice Structure
Hexagonal(HEX)
Lattice Constant
3.660
Lattice C/A Ratio
1.614
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