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

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Tungsten

Tungsten Element Properties

d73
Ta
Tantalum
d74
W
Tungsten
d75
Re
Rhenium
General
NameTungsten
SymbolW
Number74
Group Number6
GroupTransition metals
Blockd
Density19.3 g/cm3
Atomic Weight183.85 g/mol
Atomic Volume9.53 cm3/mol
Discover1783


States
StateSolid
Melting Point3695 K
Boiling Point5828 K
Triple PointNil
Critical Point13892 K
Heat of Fusion52.31 kJ/mol
Heat of Vaporization806.7 kJ/mol


Energies
First Ionization Energy770 kJ/mole
Second Ionization EnergyNil
Third Ionization EnergyNil
Electronegativity2.36
Electron Affinity78.6 kJ/mole
Specific Heat0.13 J/gK
Heat Atomization849 kJ/mole atoms


Oxidation and Electrons
Shells2,8,18,32,12,2
Electron Configuration[Xe] 4f14 5d4 6s2
Minimum Oxidation Number-2
Maximum Oxidation Number6
Minimum Common Oxidation Number0
Maximum Common Oxidation Number6


Appearance and Characteristics
Crystal Structurecubic body centered
Characteristicshighest melting metal
Colorbluish-gray
UsesWC drill bits, bulb wire
HardnessNil
ToxicityNone


Reactions
Reaction with Airnone, w/ht =>WO3
Reaction with 6M HClNone
Reaction with 15M HNO3None
Reaction with 6M NaOHNone


Other Forms
Number of Isotopes5
HydrideNone
OxideWO2 WO3
ChlorideWClx [x=2-6]


Radius
Atomic Radius139 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)Nil


Conductivity
Thermal Conductivity173 J/m-sec-deg
Electrical Conductivity176.991 1/mohm-cm
Polarizability11.1 A3


Abundance
SourceScheelite,wolframite(oxide)
Relation Abundance Solar System-0.876 log
Abundance Earth's Crust0.2 log


d73
Ta
Tantalum
d74
W
Tungsten
d75
Re
Rhenium




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