Palladium Element Properties

Palladium

d45
Rh
Rhodium
d46
Pd
Palladium
d47
Ag
Silver
General
Name(Palladium)
Symbol(Pd)
Number(46)
Group Number(10)
Group(Transition metals)
Block(d)
Density(12.02 g/cm3)
Atomic Weight(106.4 g/mol)
Atomic Volume(8.9 cm3/mol)
Discover(1803)


States
State(Solid)
Melting Point(1828.05 K)
Boiling Point(3236 K)
Triple Point(Nil)
Critical Point(Nil)
Heat of Fusion(16.74 kJ/mol)
Heat of Vaporization(362 kJ/mol)


Energies
First Ionization Energy(804.7 kJ/mole)
Second Ionization Energy(1894 kJ/mole)
Third Ionization Energy(3177.2 kJ/mole)
Electronegativity(2.2)
Electron Affinity(53.7 kJ/mole)
Specific Heat(0.24 J/gK)
Heat Atomization(378 kJ/mole atoms)


Oxidation and Electrons
Shells(2,8,18,18)
Electron Configuration([Kr] 4d10)
Minimum Oxidation Number(0)
Maximum Oxidation Number(4)
Minimum Common Oxidation Number(0)
Maximum Common Oxidation Number(4)


Appearance and Characteristics
Crystal Structure(cubic face centered)
Characteristics(absorbs H2)
Color(silvery-white)
Uses(catalysts, dental crowns)
Hardness(4.8 mohs)
Toxicity(None)


Reactions
Reaction with Air(mild, w/ht, =>PdO)
Reaction with 6M HCl(None)
Reaction with 15M HNO3(mild, =>Pd(NO3)2)
Reaction with 6M NaOH(None)


Other Forms
Number of Isotopes(6)
Hydride(PdHx x<1 non-stoich)
Oxide(PdO)
Chloride(PdCl2)


Radius
Atomic Radius(137 pm)
Ionic Radius (1+ ion)(Nil)
Ionic Radius (1- ion)(Nil)
Ionic Radius (2+ ion)(100 pm)
Ionic Radius (2- ion)(Nil)
Ionic Radius (3+ ion)(90 pm)


Conductivity
Thermal Conductivity(71.8 J/m-sec-deg)
Electrical Conductivity(94.8 1/mohm-cm)
Polarizability(4.8 A3)


Abundance
Source(nickel ores (sulfides))
Relation Abundance Solar System(0.143 log)
Abundance Earths Crust(-2 log)


d45
Rh
Rhodium
d46
Pd
Palladium
d47
Ag
Silver

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