Indium Element Properties

Indium

d48
Cd
Cadmium
p49
In
Indium
p50
Sn
Tin
General
Name(Indium)
Symbol(In)
Number(49)
Group Number(13)
Group(Metal)
Block(p)
Density(7.31 g/cm3)
Atomic Weight(114.82 g/mol)
Atomic Volume(15.7 cm3/mol)
Discover(1863)


States
State(Solid)
Melting Point(429.75 K)
Boiling Point(2345 K)
Triple Point(Nil)
Critical Point(Nil)
Heat of Fusion(3.281 kJ/mol)
Heat of Vaporization(231.8 kJ/mol)


Energies
First Ionization Energy(558.3 kJ/mole)
Second Ionization Energy(1820.6 kJ/mole)
Third Ionization Energy(2704.5 kJ/mole)
Electronegativity(1.78)
Electron Affinity(30 kJ/mole)
Specific Heat(0.23 J/gK)
Heat Atomization(243 kJ/mole atoms)


Oxidation and Electrons
Shells(2,8,18,18,3)
Electron Configuration([Kr] 4d10 5s2 5p1)
Minimum Oxidation Number(0)
Maximum Oxidation Number(3)
Minimum Common Oxidation Number(0)
Maximum Common Oxidation Number(3)


Appearance and Characteristics
Crystal Structure(tetragonal)
Characteristics(soft)
Color(silvery-white)
Uses(transistors, photocells)
Hardness(1.2 mohs)
Toxicity(None)


Reactions
Reaction with Air(mild, =>In2O3)
Reaction with 6M HCl(mild, =>H2, InCl3)
Reaction with 15M HNO3(mild, =>In(NO3)3)
Reaction with 6M NaOH(None)


Other Forms
Number of Isotopes(2)
Hydride(None)
Oxide(In2O3)
Chloride(InCl InCl3)


Radius
Atomic Radius(167 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)(94 pm)


Conductivity
Thermal Conductivity(81.8 J/m-sec-deg)
Electrical Conductivity(119.474 1/mohm-cm)
Polarizability(9.7 A3)


Abundance
Source(Zn/Pb smelting by-product)
Relation Abundance Solar System(-0.735 log)
Abundance Earths Crust(-1 log)


d48
Cd
Cadmium
p49
In
Indium
p50
Sn
Tin

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