Ruthenium Element Properties

Ruthenium

d43
Tc
Technetium
d44
Ru
Ruthenium
d45
Rh
Rhodium
General
Name(Ruthenium)
Symbol(Ru)
Number(44)
Group Number(8)
Group(Transition metals)
Block(d)
Density(12.2 g/cm3)
Atomic Weight(101.07 g/mol)
Atomic Volume(8.3 cm3/mol)
Discover(1844)


States
State(Solid)
Melting Point(2607 K)
Boiling Point(4423 K)
Triple Point(Nil)
Critical Point(Nil)
Heat of Fusion(38.59 kJ/mol)
Heat of Vaporization(591.6 kJ/mol)


Energies
First Ionization Energy(711.1 kJ/mole)
Second Ionization Energy(1617.1 kJ/mole)
Third Ionization Energy(2746.9 kJ/mole)
Electronegativity(2.2)
Electron Affinity(101 kJ/mole)
Specific Heat(0.238 J/gK)
Heat Atomization(643 kJ/mole atoms)


Oxidation and Electrons
Shells(2,8,18,15,1)
Electron Configuration([Kr] 4d7 5s1 4d7 5s1)
Minimum Oxidation Number(-2)
Maximum Oxidation Number(8)
Minimum Common Oxidation Number(0)
Maximum Common Oxidation Number(4)


Appearance and Characteristics
Crystal Structure(hexagonal)
Characteristics(hard)
Color(silvery-white)
Uses(catalysts)
Hardness(6.5 mohs)
Toxicity(None)


Reactions
Reaction with Air(none below 800 deg.C)
Reaction with 6M HCl(None)
Reaction with 15M HNO3(None)
Reaction with 6M NaOH(None)


Other Forms
Number of Isotopes(7)
Hydride(None)
Oxide(RuO2 RuO4)
Chloride(RuCl2 RuCl3)


Radius
Atomic Radius(134 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)(82 pm)


Conductivity
Thermal Conductivity(117 J/m-sec-deg)
Electrical Conductivity(131.579 1/mohm-cm)
Polarizability(9.6 A3)


Abundance
Source(nickel ores (sulfides))
Relation Abundance Solar System(0.270 log)
Abundance Earths Crust(-3 log)


d43
Tc
Technetium
d44
Ru
Ruthenium
d45
Rh
Rhodium

english Calculators and Converters


Sitemap