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Yttrium Element Properties, Transition metals Group, Periodic Table of the Elements

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Yttrium

Yttrium Element Properties

s38
Sr
Strontium
d39
Y
Yttrium
d40
Zr
Zirconium
General
NameYttrium
SymbolY
Number39
Group Number3
GroupTransition metals
Blockd
Density4.47 g/cm3
Atomic Weight88.9059 g/mol
Atomic Volume19.8 cm3/mol
Discover1794


States
StateSolid
Melting Point1799 K
Boiling Point3609 K
Triple PointNil
Critical PointNil
Heat of Fusion11.42 kJ/mol
Heat of Vaporization365 kJ/mol


Energies
First Ionization Energy615.6 kJ/mole
Second Ionization Energy1181 kJ/mole
Third Ionization Energy1979.9
Electronegativity1.22
Electron Affinity29.6 kJ/mole
Specific Heat0.30 J/gK
Heat Atomization423 kJ/mole atoms


Oxidation and Electrons
Shells2,8,18,9,2
Electron Configuration[Kr] 4d1 5s2
Minimum Oxidation Number0
Maximum Oxidation Number3
Minimum Common Oxidation Number0
Maximum Common Oxidation Number3


Appearance and Characteristics
Crystal Structurehexagonal
Characteristicsforms protective oxide
Colorsilvery
UsesYAG laser, TV phosphor
Hardnessmohs
ToxicityNone


Reactions
Reaction with Airvigorous, =>Y2O3
Reaction with 6M HClmild, =>H2, YCl3
Reaction with 15M HNO3vigorous, =>Y(NO3)3
Reaction with 6M NaOHNone


Other Forms
Number of Isotopes1
HydrideYH2 YH3
OxideY2O3
ChlorideYCl3


Radius
Atomic Radius180 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)104 pm


Conductivity
Thermal Conductivity17.2 J/m-sec-deg
Electrical Conductivity16.9 1/mohm-cm
Polarizability22.7 A3


Abundance
Sourcexenotime (phosphate)
Relation Abundance Solar System0.667 log
Abundance Earth's Crust1.51 log


s38
Sr
Strontium
d39
Y
Yttrium
d40
Zr
Zirconium




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