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Tungsten

74
W
183.85
Tungsten
 General | States | Energies | Oxidation & Electrons | Appearance & Characteristics | Reactions | Other Forms Radius | Conductivity | Abundance

General:

Name: Tungsten Symbol: W
Group: Trans. Met. Atomic weight: 183.85
Density @ 293 K: 19.3 g/cm3 Atomic volume: 9.53 cm3/mol
Group: Trans. Met. discovered: 1783

States:

state (s, l, g): s
melting point: 3683.2 K boiling point: 5773 K
Heat of fusion: 35.40 kJ/mol Heat of vaporization: 824.0 kJ/mol

Energies:

1st ionization energy: 770 kJ/mole
electronegativity: 2.36 2nd ionization energy: kJ/mole
electron affinity: 78.6 kJ/mole 3rd ionization energy: kJ/mole
Specific heat: 0.13 J/gK heat atomization: 849 kJ/mole atoms

Oxidation & Electrons:

Shells: 2,8,18,32,12,2 electron configuration: [Xe] 4f14 5d4 6s2
minimum oxidation number: -2 maximum oxidation number: 6
min. common oxidation no.: 0 max. common oxidation no.: 6

Appearance & Characteristics:

structure: bcc: body-centered cubic color: bluish-gray
uses: WC drill bits, bulb wire toxicity:
hardness: mohs characteristics: highest melting metal

Reactions:

reaction with air: none, w/ht =>WO3
reaction with 6M HCl: none reaction with 6M HCl: none
reaction with 15M HNO3: reaction with 6M NaOH:

Other Forms:

number of isotopes: 5 hydride(s):
oxide(s): WO2 WO3 chloride(s): WClx [x=2-6]

Radius:

ionic radius (2- ion): pm ionic radius (1- ion): pm
atomic radius: 139 pm ionic radius (1+ ion): pm
ionic radius (2+ ion): pm ionic radius (3+ ion): pm

Conductivity:

thermal conductivity: 173 J/m-sec-deg
electrical conductivity: 176.991 1/mohm-cm polarizability: 11.1 A^3

Abundance:

source: Scheelite,wolframite(oxide)
rel. abund. solar system: -0.876 log abundance earth's crust: 0.2 log
cost, pure: 11 $/100g cost, bulk: $/100g