Rhenium Element Properties

Rhenium

d74
W
Tungsten
d75
Re
Rhenium
d76
Os
Osmium
General
Name(Rhenium)
Symbol(Re)
Number(75)
Group Number(7)
Group(Transition metals)
Block(d)
Density(21.0 g/cm3)
Atomic Weight(186.207 g/mol)
Atomic Volume(8.85 cm3/mol)
Discover(1925)


States
State(Solid)
Melting Point(3459 K)
Boiling Point(5869 K)
Triple Point(Nil)
Critical Point(Nil)
Heat of Fusion(60.43 kJ/mol)
Heat of Vaporization(704 kJ/mol)


Energies
First Ionization Energy(760 kJ/mole)
Second Ionization Energy(Nil)
Third Ionization Energy(Nil)
Electronegativity(1.9)
Electron Affinity(14 kJ/mole)
Specific Heat(0.13 J/gK)
Heat Atomization(770 kJ/mole atoms)


Oxidation and Electrons
Shells(2,8,18,32,13,2)
Electron Configuration([Xe] 4f14 5d5 6s2)
Minimum Oxidation Number(-3)
Maximum Oxidation Number(7)
Minimum Common Oxidation Number(0)
Maximum Common Oxidation Number(4)


Appearance and Characteristics
Crystal Structure(hexagonal)
Characteristics(high melting point)
Color(silvery-white)
Uses(catalysts, thermocouples)
Hardness(Nil)
Toxicity(None)


Reactions
Reaction with Air(mild, w/ht =>Re2O7)
Reaction with 6M HCl(None)
Reaction with 15M HNO3(mild, =>HReO4)
Reaction with 6M NaOH(None)


Other Forms
Number of Isotopes(2)
Hydride(None)
Oxide(Re2O5 ReO3 Re2O7)
Chloride(Re3Cl9 ReCl4 ReCl5 ReCl6)


Radius
Atomic Radius(137 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)(Nil)


Conductivity
Thermal Conductivity(48 J/m-sec-deg)
Electrical Conductivity(51.813 1/mohm-cm)
Polarizability(9.7 A3)


Abundance
Source(Molybdenite (sulfide))
Relation Abundance Solar System(-1.287 log)
Abundance Earths Crust(-2.3 log)


d74
W
Tungsten
d75
Re
Rhenium
d76
Os
Osmium

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