Molybdenum Element Properties

Molybdenum

d41
Nb
Niobium
d42
Mo
Molybdenum
d43
Tc
Technetium
General
Name(Molybdenum)
Symbol(Mo)
Number(42)
Group Number(6)
Group(Transition metals)
Block(d)
Density(10.2 g/cm3)
Atomic Weight(95.94 g/mol)
Atomic Volume(9.4 cm3/mol)
Discover(1781)


States
State(Solid)
Melting Point(2896 K)
Boiling Point(4912 K)
Triple Point(Nil)
Critical Point(Nil)
Heat of Fusion(37.48 kJ/mol)
Heat of Vaporization(617 kJ/mol)


Energies
First Ionization Energy(684.9 kJ/mole)
Second Ionization Energy(1588.2 kJ/mole)
Third Ionization Energy(2620.5 kJ/mole)
Electronegativity(2.24)
Electron Affinity(72 kJ/mole)
Specific Heat(0.25 J/gK)
Heat Atomization(658 kJ/mole atoms)


Oxidation and Electrons
Shells(2,8,18,13,1)
Electron Configuration([Kr] 4d5 5s1)
Minimum Oxidation Number(-2)
Maximum Oxidation Number(6)
Minimum Common Oxidation Number(0)
Maximum Common Oxidation Number(6)


Appearance and Characteristics
Crystal Structure(cubic body centered)
Characteristics(very hard)
Color(silvery-white)
Uses(catalysts, tool steel)
Hardness(mohs)
Toxicity(No)


Reactions
Reaction with Air(none, w/ht =>MoO3)
Reaction with 6M HCl(None)
Reaction with 15M HNO3(None)
Reaction with 6M NaOH(None)


Other Forms
Number of Isotopes(7)
Hydride(None)
Oxide(MoO2 MoO3)
Chloride(MoClx [x=2-6])


Radius
Atomic Radius(139 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)(83 pm)


Conductivity
Thermal Conductivity(138 J/m-sec-deg)
Electrical Conductivity(192.308 1/mohm-cm)
Polarizability(12.8 A3)


Abundance
Source(Molybdenite (sulfide))
Relation Abundance Solar System(0.407 log)
Abundance Earths Crust(0.2 log)


d41
Nb
Niobium
d42
Mo
Molybdenum
d43
Tc
Technetium

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