Neodymium Element Properties

Neodymium

f59
Pr
Praseodymium
f60
Nd
Neodymium
f61
Pm
Promethium
General
Name(Neodymium)
Symbol(Nd)
Number(60)
Group Number(NA)
Group(Rare Earth, Lanthanides)
Block(f)
Density(7.0 g/cm3)
Atomic Weight(144.24 g/mol)
Atomic Volume(20.6 cm3/mol)
Discover(1885)


States
State(Solid)
Melting Point(1297 K)
Boiling Point(3347 K)
Triple Point(Nil)
Critical Point(Nil)
Heat of Fusion(7.14 kJ/mol)
Heat of Vaporization(289 kJ/mol)


Energies
First Ionization Energy(529.6 kJ/mole)
Second Ionization Energy(1035 kJ/mole)
Third Ionization Energy(2130 kJ/mole)
Electronegativity(1.14)
Electron Affinity(50 kJ/mole)
Specific Heat(0.19 J/gK)
Heat Atomization(328 kJ/mole atoms)


Oxidation and Electrons
Shells(2,8,18,22,8,2)
Electron Configuration([Xe] 4f4 6s2)
Minimum Oxidation Number(0)
Maximum Oxidation Number(3)
Minimum Common Oxidation Number(0)
Maximum Common Oxidation Number(3)


Appearance and Characteristics
Crystal Structure(hexagonal)
Characteristics(Nil)
Color(silvery-white)
Uses(alloys, Welder's mask)
Hardness(Nil)
Toxicity(None)


Reactions
Reaction with Air(vigorous, w/ht =>Nd2O3)
Reaction with 6M HCl(mild, =>H2, NdCl3)
Reaction with 15M HNO3(mild, =>Nd(NO3)3)
Reaction with 6M NaOH(None)


Other Forms
Number of Isotopes(7)
Hydride(NdH2 NdH3)
Oxide(Nd2O3)
Chloride(NdCl2 NdCl3)


Radius
Atomic Radius(181 pm)
Ionic Radius (1+ ion)(Nil)
Ionic Radius (1- ion)(Nil)
Ionic Radius (2+ ion)(Nil)
Ionic Radius (2- ion)(Nil)
Ionic Radius (3+ ion)(112.3 pm)


Conductivity
Thermal Conductivity(16.5 J/m-sec-deg)
Electrical Conductivity(15.4 1/mohm-cm)
Polarizability(31.4 A3)


Abundance
Source(Monazite(phosphate),bastnaesite)
Relation Abundance Solar System(-0.082 log)
Abundance Earths Crust(1.4 log)


f59
Pr
Praseodymium
f60
Nd
Neodymium
f61
Pm
Promethium

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