Wolframyo

Ang wolframyo (Iningles tungsten) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga W ug kaiphan nga atomik 74.

Ang wolframyo mao ang puthaw nga transisyon.

Tungsten
74W
Mo

W

Sg
Hydrogen (other non-metal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (other non-metal)
Nitrogen (other non-metal)
Oxygen (other non-metal)
Fluorine (halogen)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (other non-metal)
Sulfur (other non-metal)
Chlorine (halogen)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (other non-metal)
Bromine (halogen)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (halogen)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanoid)
Cerium (lanthanoid)
Praseodymium (lanthanoid)
Neodymium (lanthanoid)
Promethium (lanthanoid)
Samarium (lanthanoid)
Europium (lanthanoid)
Gadolinium (lanthanoid)
Terbium (lanthanoid)
Dysprosium (lanthanoid)
Holmium (lanthanoid)
Erbium (lanthanoid)
Thulium (lanthanoid)
Ytterbium (lanthanoid)
Lutetium (lanthanoid)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (halogen)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinoid)
Thorium (actinoid)
Protactinium (actinoid)
Uranium (actinoid)
Neptunium (actinoid)
Plutonium (actinoid)
Americium (actinoid)
Curium (actinoid)
Berkelium (actinoid)
Californium (actinoid)
Einsteinium (actinoid)
Fermium (actinoid)
Mendelevium (actinoid)
Nobelium (actinoid)
Lawrencium (actinoid)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Ununtrium (unknown chemical properties)
Flerovium (unknown chemical properties)
Ununpentium (unknown chemical properties)
Livermorium (unknown chemical properties)
Ununseptium (unknown chemical properties)
Ununoctium (unknown chemical properties)
Periodic table
tantalumtungstenrhenium
Panagway
grayish white, lustrous
Wolframyo
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan tungsten, W, 74
Paglitok /ˈtʌŋstən/ [[Help:Pronunciation respelling key|Plantilya:Smallcaps all-stən]];
/ˈwʊlfrəm/ [[Help:Pronunciation respelling key|Plantilya:Smallcaps all-frəm]]
Kategoriyang elemento puthaw nga transisyon
Group, period, block 6, 6, d
Gibug-aton sa atomo 183.84
Kontorno sa elektron [Xe] 4f14 5d4 6s2
2, 8, 18, 32, 12, 2
Electron shells of tungsten (2, 8, 18, 32, 12, 2)
Electron shells of tungsten (2, 8, 18, 32, 12, 2)
History
Pagkadiskobre Torbern Bergman (1781)
First isolation Juan José Elhuyar and Fausto Elhuyar (1783)
Physical properties
Phase magahi
Density (near r.t.) 19.25 g·cm−3
Liquid density at m.p. 17.6 g·cm−3
Melting point 3695 K, 3422 °C, 6192 °F
Boiling point 5828 K, 5555 °C, 10031 °F
Critical point 13892 K, MPa
Heat of fusion 35.3 kJ·mol−1
Heat of vaporization 806.7 kJ·mol−1
Molar heat capacity 24.27 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 3477 3773 4137 4579 5127 5823
Atomic properties
Oxidation states 6, 5, 4, 3, 2, 1, 0, −1, −2
(mildly acidic oxide)
Electronegativity 2.36 (Pauling scale)
Ionization energies 1st: 770 kJ·mol−1
2nd: 1700 kJ·mol−1
Atomic radius 139 pm
Covalent radius 162±7 pm
Miscellanea
Crystal structure body-centered cubic
Tungsten has a body-centered cubic crystal structure
Magnetic ordering paramagnetic
Electrical resistivity (20 °C) 52.8 nΩ·m
Thermal conductivity 173 W·m−1·K−1
Thermal expansion (25 °C) 4.5 µm·m−1·K−1
Young's modulus 411 GPa
Shear modulus 161 GPa
Bulk modulus 310 GPa
Poisson ratio 0.28
Mohs hardness 7.5
Vickers hardness 3430 MPa
Brinell hardness 2570 MPa
CAS registry number 7440-33-7
Most stable isotopes
Main article: Isotopes of tungsten
iso NA half-life DM DE (MeV) DP
180W 0.12% 1.8×1018 y α 2.516 176Hf
181W syn 121.2 d ε 0.188 181Ta
182W 26.50% >1.7×1020 y α 1.772 178Hf
183W 14.31% >8×1019 y α 1.680 179Hf
184W 30.64% >1.8×1020 y α 1.123 180Hf
185W syn 75.1 d β 0.433 185Re
186W 28.43% >4.1×1018 y α 1.656 182Hf
ββ - 186Os
· r

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Elementong kimikoIninglesTalaang peryodiko

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