Scandium Element Properties

Scandium

s20
Ca
Calcium
d21
Sc
Scandium
d22
Ti
Titanium
General
Name(Scandium)
Symbol(Sc)
Number(21)
Group Number(3)
Group(Transition metals)
Block(d)
Density(3.0 g/cm3)
Atomic Weight(44.9559 g/mol)
Atomic Volume(15.0 cm3/mol)
Discover(1879)


States
State(Solid)
Melting Point(1814 K)
Boiling Point(3109 K)
Triple Point(Nil)
Critical Point(Nil)
Heat of Fusion(14.1 kJ/mol)
Heat of Vaporization(332.7 kJ/mol)


Energies
First Ionization Energy(631 kJ/mole)
Second Ionization Energy(1235 kJ/mole)
Third Ionization Energy(2389 kJ/mole)
Electronegativity(1.36)
Electron Affinity(18.1 kJ/mole)
Specific Heat(0.6 J/gK)
Heat Atomization(378 kJ/mole atoms)


Oxidation and Electrons
Shells(2,8,9,2)
Electron Configuration([Ar] 3d1 4s2)
Minimum Oxidation Number(0)
Maximum Oxidation Number(3)
Minimum Common Oxidation Number(0)
Maximum Common Oxidation Number(3)


Appearance and Characteristics
Crystal Structure(hexagonal)
Characteristics(soft)
Color(silvery-white)
Uses(no significant uses)
Hardness(mohs)
Toxicity(None)


Reactions
Reaction with Air(vigorous, =>Sc2O3)
Reaction with 6M HCl(mild, =>H2, ScCl3)
Reaction with 15M HNO3(mild, =>Sc(NO3)3)
Reaction with 6M NaOH(None)


Other Forms
Number of Isotopes(1)
Hydride(ScH2 ScH3)
Oxide(Sc2O3)
Chloride(ScCl3)


Radius
Atomic Radius(162 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)(88.5 pm)


Conductivity
Thermal Conductivity(15.8 J/m-sec-deg)
Electrical Conductivity(19.2 1/mohm-cm)
Polarizability(17.8 A3)


Abundance
Source(U extractn by-product)
Relation Abundance Solar System(1.534 log)
Abundance Earths Crust(1.3 log)


s20
Ca
Calcium
d21
Sc
Scandium
d22
Ti
Titanium

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