Platinum Element Properties

Platinum

d77
Ir
Iridium
d78
Pt
Platinum
d79
Au
Gold
General
Name(Platinum)
Symbol(Pt)
Number(78)
Group Number(10)
Group(Transition metals)
Block(d)
Density(21.45 g/cm3)
Atomic Weight(195.09 g/mol)
Atomic Volume(9.10 cm3/mol)
Discover(1748)


States
State(Solid)
Melting Point(2041.4 K)
Boiling Point(4098 K)
Triple Point(Nil)
Critical Point(Nil)
Heat of Fusion(22.17 kJ/mol)
Heat of Vaporization(469 kJ/mol)


Energies
First Ionization Energy(870 kJ/mole)
Second Ionization Energy(1791 kJ/mole)
Third Ionization Energy(Nil)
Electronegativity(2.28)
Electron Affinity(205.3 kJ/mole)
Specific Heat(0.13 J/gK)
Heat Atomization(565 kJ/mole atoms)


Oxidation and Electrons
Shells(2,8,18,32,17,1)
Electron Configuration([Xe] 4f14 5d9 6s1)
Minimum Oxidation Number(0)
Maximum Oxidation Number(6)
Minimum Common Oxidation Number(0)
Maximum Common Oxidation Number(4)


Appearance and Characteristics
Crystal Structure(cubic face centered)
Characteristics(Inert, ductile)
Color(silvery-white)
Uses(jewelry, catalysts)
Hardness(4.3 mohs)
Toxicity(None)


Reactions
Reaction with Air(None)
Reaction with 6M HCl(None)
Reaction with 15M HNO3(None)
Reaction with 6M NaOH(None)


Other Forms
Number of Isotopes(6)
Hydride(None)
Oxide(PtO2)
Chloride(PtCl2 PtCl4)


Radius
Atomic Radius(139 pm)
Ionic Radius (1+ ion)(Nil)
Ionic Radius (1- ion)(Nil)
Ionic Radius (2+ ion)(94 pm)
Ionic Radius (2- ion)(Nil)
Ionic Radius (3+ ion)(Nil)


Conductivity
Thermal Conductivity(71.6 J/m-sec-deg)
Electrical Conductivity(94.34 1/mohm-cm)
Polarizability(6.5 A3)


Abundance
Source(nickel ores (sulfides))
Relation Abundance Solar System(0.127 log)
Abundance Earths Crust(-2.3 log)


d77
Ir
Iridium
d78
Pt
Platinum
d79
Au
Gold

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